Prof. Dr. med., PhD Nicole Ritz

Paganini, Alina, Fritschi, Nora, Filippi, Cornelia, Ritz, Nicole, Simmen, Urs, Scheinemann, Katrin, Filippi, Andreas, & Diesch-Furlanetto, Tamara. (2025). Comparative analysis of salivary cytokine profiles in newly diagnosed pediatric patients with cancer and healthy children. Scientific Reports, 15(1). https://doi.org/10.1038/s41598-025-87608-1

Götzinger, F., Caprile, A. A., Noguera-Julian, A., Lo Vecchio, A., Baquero-Artigao, F., Rosal, T. d., Brinkmann, F., Mouchet, F., Velizarova, S., Kötz, K., Ritz, N., Buonsenso, D., Song, R., Roy, R. B., Nieminen, T., Rau, C., Chechenieva, V., Welch, S., Kaiser-Labusch, P., et al. (2025). Clinical presentation, diagnostics, and outcomes of infants with congenital and postnatal tuberculosis: a multicentre cohort study of the Paediatric Tuberculosis Network European Trials Group (ptbnet). 53. https://doi.org/10.1016/j.lanepe.2025.101303

Laura Heeb, Nora Fritschi, Andrea Marten, Tatjana Welzel, Nicole Ritz, & Ulrich Heininger. (2025). Borrelia burgdorferi infections in children and adolescents in Switzerland – a seroprevalence study 2023/2024 (BOBUINCA). Infection, 53(3), 893–903. https://doi.org/10.1007/s15010-024-02387-7

Neudecker, D., Altpeter, E., Ritz, N., & Fritschi, N. (2025). Sex distribution in tuberculosis disease in children, adolescents, and adults in a low-incidence country: a retrospective population-based cohort study. 155(5). https://doi.org/10.57187/s.4187

Vaezipour, N., Buettcher, M., & Ritz, N. (2025). Fever in the Returning Pediatric Traveler. 44(5), e170–e172. https://doi.org/10.1097/INF.0000000000004783

Vaezipour, Nina, Bigi, Sandra, Song, Rinn, & Ritz, Nicole. (2025). Rifampicin and its neuroprotective properties in humans – A systematic review [Journal-article]. Biomedicine and Pharmacotherapy, 185, 117928. https://doi.org/10.1016/j.biopha.2025.117928

Wurm, Juliane, Ritz, Nicole, & Zimmermann, Petra. (2025). Coronavirus disease 2019 (COVID-19) in children: Evolving epidemiology, immunology, symptoms, diagnostics, treatment, post–COVID-19 conditions, prevention strategies, and future directions [Journal-article]. Journal of Allergy and Clinical Immunology, 155(4), 1071–1081. https://doi.org/10.1016/j.jaci.2024.11.012

Brasier, Noé, Wang, Joseph, Gao, Wei, Sempionatto, Juliane R., Dincer, Can, Ates, H. Ceren, Güder, Firat, Olenik, Selin, Schauwecker, Ivo, Schaffarczyk, Dietmar, Vayena, Effy, Ritz, Nicole, Weisser, Maja, Mtenga, Sally, Ghaffari, Roozbeh, Rogers, John A., & Goldhahn, Jörg. (2024). Applied body-fluid analysis by wearable devices [Journal-article]. Nature, 636(8041), 57–68. https://doi.org/10.1038/s41586-024-08249-4

Neudecker, Daniela, Fritisch, Nora, Sutter, Thomas, Lu, Lenette, Lu, Pei, Tebruegge, Marc, Santiago-Garcia, Begoña, & Ritz, Nicole. (2024). Evaluation of serological assays for the diagnosis of childhood tuberculosis disease: a study protocol. BMC Infectious Diseases, 24(1). https://doi.org/10.1186/s12879-024-09359-0

Stucki, Michael, Lenzin, Golda, Agyeman, Philipp KA, Posfay-Barbe, Klara M, Ritz, Nicole, Trück, Johannes, Fallegger, Angela, Oberle, Susanne G, Martyn, Oliver, & Wieser, Simon. (2024). Inpatient burden of respiratory syncytial virus (RSV) in Switzerland, 2003 to 2021: an analysis of administrative data [Journal-article]. Eurosurveillance, 29(39). https://doi.org/10.2807/1560-7917.ES.2024.29.39.2400119

Fritschi, Nora, Gureva, Tatyana, Eliseev, Platon, Jackson, Charlotte, Milanzi, Edith, Crichton, Siobhan, Collins, Intira Jeannie, Turkova, Anna, Mariandyshev, Andrei, & Ritz, Nicole. (2024). Diagnosis of tuberculosis infection in children with a novel skin test and the traditional tuberculin skin test: An observational study [Journal-article]. PLoS ONE, 19(8), e0293272. https://doi.org/10.1371/journal.pone.0293272

Pach, Sophie, Ritz, Nicole, & Eisen, Sarah. (2024). Optimizing Early Diagnosis of Infectious Diseases in Migrant and Refugee Children: An Overview of Best Practices and Strategies [Journal-article]. Pediatric Infectious Disease Journal, 43(8), e278–e281. https://doi.org/10.1097/INF.0000000000004406

Rodríguez-Molino, Paula, Tebruegge, Marc, Noguera-Julian, Antoni, Neth, Olaf, Fidler, Katy, Brinkmann, Folke, Sainz, Talia, Ivaskeviciene, Inga, Ritz, Nicole, Brito, Maria Joao, Milheiro Silva, Tiago, Chechenieva, Vira, Serdiuk, Maryna, Lancella, Laura, Russo, Cristina, Soler-García, Aleix, Navarro, Maria Luisa, Krueger, Renate, Feiterna-Sperling, Cornelia, et al. (2024). Tuberculosis Disease in Immunocompromised Children and Adolescents: A Pediatric Tuberculosis Network European Trials Group Multicenter Case-control Study [Journal-article]. Clinical Infectious Diseases, 79(1), 215–222. https://doi.org/10.1093/cid/ciae158

Wurm, Juliane, Uka, Anita, Buettcher, Michael, Kottanattu, Lisa, Schöbi, Nina, Trück, Johannes, Villiger, Reto, Ritz, Nicole, & Zimmermann, Petra. (2024). Clinical and Laboratory Biomarkers as Predictors of Severity in Pediatric Inflammatory Multisystem Syndrome-temporally Associated with SARS-CoV-2: Data from a Prospective Nationwide Surveillance Study in Switzerland [Journal-article]. Pediatric Infectious Disease Journal, 43(7), 675–681. https://doi.org/10.1097/inf.0000000000004332

Hasan, Nadia, Nourse, Clare, Schaaf, H Simon, Bekker, Adrie, Loveday, Marian, Alcântara Gabardo, Betina M, Coulter, Christopher, Chabala, Chishala, Kabra, Sushil, Moore, Eilish, Maleche-Obimbo, Elizabeth, Salazar-Austin, Nicole, Ritz, Nicole, Starke, Jeffrey R, Steenhoff, Andrew P, Triasih, Rina, Welch, Steven B, & Marais, Ben J. (2024). Management of the infant born to a mother with tuberculosis: a systematic review and consensus practice guideline. The Lancet Child and Adolescent Health, 8(5), 369–378. https://doi.org/10.1016/s2352-4642(23)00345-0

Wurm, Juliane, Uka, Anita, Bernet, Vera, Buettcher, Michael, Giannoni, Eric, Kottanattu, Lisa, Schöbi, Nina, Zemmouri, Abdelaziz, Ritz, Nicole, & Zimmermann, Petra. (2024). The changing clinical presentation of COVID-19 in children during the course of the pandemic [Journal-article]. Acta Paediatrica, International Journal of Paediatrics, 113(4), 771–777. https://doi.org/10.1111/apa.17061

Ulziibat, Munkhtulga, Buettcher, Michael, Altankhuyag, Uuganbayar, Chuluunbaatar, Battulga, Mikhlay, Zorigtbaatar, Sharav, Chimgee, Bira, Sarantsetseg, Essig, Stefan, Ritz, Nicole, & Munkhuu, Bayalag. (2024). Microbiological Spectrum of Osteoarticular Infections and Their Management in Mongolian Children [Journal-article]. Global Pediatric Health, 11. https://doi.org/10.1177/2333794x241298801

Bahadori, Atessa, Ritz, Nicole, & Zimmermann, Petra. (2023). Diagnosis and treatment of Lyme disease in children. Archives of Disease in Childhood: Education and Practice Edition, 108(6), 422–428. https://doi.org/10.1136/archdischild-2023-325398

Vaezipour, Nina, Evers, Katrina, Schmid, Hanna, Ritz, Nicole, & Goischke, Alexandra. (2023). Is shorter antibiotic treatment duration increasing the risk of relapse in paediatric acute focal bacterial nephritis? Archives of Disease in Childhood, 109(3), 248–250. https://doi.org/10.1136/archdischild-2023-326054

Fritschi, N., Vaezipour, N., Buettcher, M., Portevin, D., Naranbhai, V., & Ritz, N. (2023). Ratios from full blood count as markers for TB diagnosis, treatment, prognosis: a systematic review. International Journal of Tuberculosis and Lung Disease, 27(11), 822–832. https://doi.org/10.5588/ijtld.22.0598

Gasser, Nathalie, Fritschi, Nora, Egger, Jean-Marie, Ritz, Nicole, Schoch, Otto D., & Zellweger, Jean-Pierre. (2023). Tuberculosis Case Detection and Guideline Adherence among Child Contacts in Switzerland: A Retrospective Observational Study. Respiration, 102(11), 934–943. https://doi.org/10.1159/000534362

Zhu, Yanshan, Almeida, Flávia Jacqueline, Baillie, J. Kenneth, Bowen, Asha C., Britton, Philip N., Brizuela, Martin Eduardo, Buonsenso, Danilo, Burgner, David, Chew, Keng Yih, Chokephaibulkit, Kulkanya, Cohen, Cheryl, Cormier, Stephania A., Crawford, Nigel, Curtis, Nigel, Farias, Camila G. A., Gilks, Charles F., Von Gottberg, Anne, Hamer, Diana, Jarovsky, Daniel, et al. (2023). International Pediatric COVID-19 Severity over the Course of the Pandemic. JAMA Pediatrics, 177(10), 1073–1084. https://doi.org/10.1001/jamapediatrics.2023.3117

Uka, Anita, Bressieux-Degueldre, Sabrina, Buettcher, Michael, Kottanattu, Lisa, Plebani, Margerita, Niederer-Loher, Anita, Schöbi, Nina, Hofer, Michael, Tomasini, Julie, Trück, Johannes, Villiger, Reto, Wagner, Noémie, Wuetz, Daniela, Ritz, Nicole, & Zimmermann, Petra. (2023). Cardiac involvement in children with paediatric multisystem inflammatory syndrome temporally associated with SARS-CoV-2 (PIMS-TS): data from a prospective nationwide surveillance study. Swiss Medical Weekly, 153(10). https://doi.org/10.57187/smw.2023.40092

Mack, Ines, Kohns Vasconcelos, Malte, Ritz, Nicole, & Zimmermann, Petra. (2023). A diagnostic algorithm for children presenting with peripheral facial nerve palsy and inconclusive diagnosis of neuroborreliosis. Acta Paediatrica, International Journal of Paediatrics, 112(8), 1644–1647. https://doi.org/10.1111/apa.16841

Kissling, Mirjam, Fritschi, Nora, Baumann, Philipp, Buettcher, Michael, Bonhoeffer, Jan, Naranbhai, Vivek, Ritz, Nicole, & ProPAED and CITRUS study team. (2023). Monocyte, Lymphocyte and Neutrophil Ratios - Easy-to-Use Biomarkers for the Diagnosis of Pediatric Tuberculosis. Pediatric Infectious Disease Journal, 42, 520–527. https://doi.org/10.1097/INF.0000000000003901

Buonsenso D, Noguera-Julian A, Moroni R, Hernández-Bartolomé A, Fritschi N, Lancella L, Cursi L, Soler-Garcia A, Krüger R, Feiterna-Sperling C, Sali M, Lo Vecchio A, Scarano S, Hernanz Lobo A, Espiau M, Soriano-Arandes A, Cetin BS, Brinkmann F, Ozere I, et al. (2023). Performance of QuantiFERON-TB Gold Plus assays in paediatric tuberculosis: a multicentre PTBNET study. Thorax, 78(3), 288–296. https://doi.org/10.1136/thorax-2022-218929

Hauser M, Kabuya JB, Mantus M, Kamavu LK, Sichivula JL, Matende WM, Fritschi N, Shields T, Curriero F, Kvit A, Chongwe G, Moss WJ, Ritz N, & Ippolito MM. (2023). Malaria in Refugee Children Resettled to a Holoendemic Area of Sub-Saharan Africa. Clinical Infectious Diseases, 76(3), E1104–E1113. https://doi.org/10.1093/cid/ciac417

Rast D, Evers KS, Egli A, Rudin C, Goischke A, & Ritz N. (2023). Aerococcus urinae — significance of detection in the paediatric urinary tract: a case series. European Journal of Pediatrics, 182(2), 749–756. https://doi.org/10.1007/s00431-022-04730-2

Bergeron, A., Mikulska, M., De Greef, J., Bondeelle, L., Franquet, T., Herrmann, J.-L., Lange, C., Spriet, I., Akova, M., Donnelly, J. P., Maertens, J., Maschmeyer, G., Rovira, M., Goletti, D., de la Camara, R., Greinix, H., Slavin, M., Hubacek, P., Cordonnier, C., et al. (2022). Mycobacterial infections in adults with haematological malignancies and haematopoietic stem cell transplants: guidelines from the 8th European Conference on Infections in Leukaemia. The Lancet Infectious Diseases, 22(12), e359–e369. https://doi.org/10.1016/s1473-3099(22)00227-4

Drozdov D, Konetzny G, Meyer P, van den Anker J, Bernhard S, & Ritz N. (2022). Dosing and Monitoring of Isoniazid in a Preterm, Extremely Low Birth Weight Infant after in Utero Exposure to Mycobacterium tuberculosis: A Case Study and Literature Review. Pediatric Infectious Disease Journal, 41(12), 967–969. https://doi.org/10.1097/INF.0000000000003718

Rinderknecht C, Filippi C, Ritz N, Fritschi N, Simmen U, Filippi A, & Diesch-Furlanetto T. (2022). Associations between salivary cytokines and oral health, age, and sex in healthy children. Scientific Reports, 12(1), 15991. https://doi.org/10.1038/s41598-022-20475-2

Spielberger, B., Pfeil, J., Assaad, K., von Both, U., Janda, A., Kitz, C., Kobbe, R., Kunze, M., Lindert, J., Ritz, N., Trapp, S., & Hufnagel, M. (2022). Care of infectious diseases in underage refugees exemplified by Ukraine: Procedure in Germany according to the S1 guidelines (AWMF register nr. 048-017) Infektiologische Versorgung minderjähriger Flüchtlinge am Beispiel der Ukraine: Vorgehen in Deutschland gemäß der S1-Leitlinine (AWMF-Register Nr. 048-017). Monatsschrift Fur Kinderheilkunde, 170(12), 1103–1112. https://doi.org/10.1007/s00112-022-01607-4

Buettcher M., & Ritz N. (2022). 11/m—Pain in the left leg and limping after bicycle crash: Preparation for the medical specialist examination: part 92 11/m mit Schmerzen im linken Bein und Hinken nach Fahrradsturz: Vorbereitung auf die Facharztprüfung: Fall 92. Monatsschrift Fur Kinderheilkunde, 170, 491–495. https://doi.org/10.1007/s00112-022-01602-9

Muigg, Veronika, Cuénod, Aline, Purushothaman, Srinithi, Siegemund, Martin, Wittwer, Matthias, Pflüger, Valentin, Schmidt, Kristina M., Weisser, Maja, Ritz, Nicole, Widmer, Andreas, Goldenberger, Daniel, Hinic, Vladimira, Roloff, Tim, Søgaard, Kirstine K., Egli, Adrian, & Seth-Smith, Helena M.B. (2022). Diagnostic challenges within the Bacillus cereus-group: finding the beast without teeth. New Microbes and New Infections, 49-50. https://doi.org/10.1016/j.nmni.2022.101040

Pfeil, J., Bialek, R., Heininger, U., Liese, J., Simon, A., Stich, A., Assaad, K., von Both, U., Janda, A., Kitz, C., Kobbe, R., Kunze, M., Lindert, J., Ritz, N., Trapp, S., Fressle, R., & Hufnagel, M. (2022). Updated recommendations on the treatment of infectious diseases in refugees in childhood and adolescence in Germany (situation as of 30 March 2022), registered as S1 guidelines (AWMF-Register Nr. 048-017): Statement of the German Society for Pediatric Infectious diseases (DGPI), the German Society for Tropical Paediatrics & International Child Health (GTP), the Professional Association for Pediatric and Adolescent Physicians (BVKJ) and the German Society of Pediatrics and Adolescent Medicine (DGKJ) with participation of the Federal Association of Physicians of German Public Health Departments (BVÖGD), the German Society of Pediatric Surgery (DGKCH), the German Society for Gynecology and Obstetrics (DGGG), German Society of General and Family Medicine (DEGAM), the Alliance Pediatric and Adolescent Health (formerly the German Academy for Pediatric and Adolescent Medicine, DAKJ), the German Society for Tropical and Travel Medicine and Global Health (DTG), the German Society for Global and Tropical Surgery (DTC) and the Swiss Pediatric Infectiology Group (PIGS) Aktualisierte Empfehlungen zur infektiologischen Versorgung von Flüchtlingen im Kindes- und Jugendalter in Deutschland (Stand 30. März 2022), angemeldet als S1-Leitlinie (AWMF-Register Nr. 048-017): Stellungnahme der Deutschen Gesellschaft für Pädiatrische Infektiologie e. V. (DGPI), der Gesellschaft für Tropenpädiatrie und Internationale Kindergesundheit e. V. (GTP), des Berufsverbandes der Kinder- und Jugendärzte e. V. (BVKJ) und der Deutschen Gesellschaft für Kinder- und Jugendmedizin e. V. (DGKJ), unter Mitarbeit des Berufsverbands der Ärztinnen und Ärzte des Öffentlichen Gesundheitsdienstes e. V. (BVÖGD), der Deutschen Gesellschaft für Kinderchirurgie e. V. (DGKCH), der Deutschen Gesellschaft für Gynäkologie und Geburtshilfe e. V. (DGGG), Deutsche Gesellschaft für Allgemeinmedizin und Familienmedizin (DEGAM), des Bündnis Kinder- und Jugendgesundheit e. V. (früher Deutsche Akademie für Kinder- und Jugendmedizin, DAKJ), der Deutschen Gesellschaft für Tropenmedizin, Reisemedizin und Globale Gesundheit e. V. (DTG), der Deutschen Gesellschaft für Globale und Tropenchirurgie e. V. (DTC) und der Pädiatrisch Infektiologischen Gruppe Schweiz (PIGS). Monatsschrift Fur Kinderheilkunde, 170(7), 632–647. https://doi.org/10.1007/s00112-022-01499-4

Lava SAG, de Luca D, Milani GP, Leroy P, Ritz N, & de Winter P. (2022). Please stop the Russian-Ukrainian war – children will be more than grateful (Patent No. 6). European Journal of Pediatrics, 181(6), Article 6. https://doi.org/10.1007/s00431-022-04444-5

Zimmermann P, Uka A., Buettcher M, Fougère Y, Plebani M, Relly C, Schmid H, Ritz N, Swiss Paediatric Surveillance Unit (SPSU), Bernet V., Betti C., Cachat F., Caplazi P., Decker M-L., Durrer E., Fluri S., Gebauer M., Gehri M., Giannoni E., et al. (2022). Neonates with SARS-CoV-2 infection: spectrum of disease from a prospective nationwide observational cohort study. Swiss Medical Weekly, 152(21-22). https://doi.org/10.4414/smw.2022.w30185

Pittet LF, Fritschi N, Tebruegge M, Dutta B, Donath S, Messina NL, Casalaz D, Hanekom WA, Britton WJ, Robins-Browne R, Curtis N, & Ritz N. (2022). Bacillus Calmette-Guerin Skin Reaction Predicts Enhanced Mycobacteria-Specific T-Cell Responses in Infants A Post Hoc Analysis of a Randomized Controlled Trial. American Journal of Respiratory and Critical Care Medicine, 205(7), 830–841. https://doi.org/10.1164/rccm.202108-1892OC

Baumann, Philipp, Fuchs, Aline, Gotta, Verena, Ritz, Nicole, Baer, Gurli, Bonhoeffer, Jessica M., Buettcher, Michael, Heininger, Ulrich, Szinnai, Gabor, & Bonhoeffer, Jan. (2022). The kinetic profiles of copeptin and mid regional proadrenomedullin (MR-proADM) in pediatric lower respiratory tract infections. PLoS ONE, 17(3 March). https://doi.org/10.1371/journal.pone.0264305

Uka A, Buettcher M, Bernhard-Stirnemann S, Fougère Y, Moussaoui D, Kottanattu L, Wagner N, Zimmermann P, Ritz N, Swiss Paediatric Surveillance Unit (SPSU), Bernet V., Betti C., Cachat F., Caplazi P., Decker M.-L., Durrer E., Fluri S., Gebauer M., Gehri M., et al. (2022). Factors associated with hospital and intensive care admission in paediatric SARS-CoV-2 infection: a prospective nationwide observational cohort study. European Journal of Pediatrics, 181(3), 1245–1255. https://doi.org/10.1007/s00431-021-04276-9

Uka A, Buettcher M, Bernhard-Stirnemann S, Fougère Y, Moussaoui D, Kottanattu L, Wagner N, Zimmermann P., Ritz N, Swiss Paediatric Surveillance Unit (SPSU), Betti C., Cachat F., Caplazi P., Decker M.-L., Durrer E., Fluri S., Gebauer M., Gehri M., Giannoni E., et al. (2022). Correction to: Factors associated with hospital and intensive care admission in paediatric SARS-CoV-2 infection: a prospective nationwide observational cohort study (European Journal of Pediatrics, (2022), 181, 3, (1245-1255), 10.1007/s00431-021-04276-9). European Journal of Pediatrics, 181(3), 1257. https://doi.org/10.1007/s00431-021-04359-7

Fritschi N, Wind A, Hammer J, & Ritz N. (2022). Subclinical Tuberculosis in Children: Diagnostic Strategies for Identification Reported in a 6-year National Prospective Surveillance Study. Clinical Infectious Diseases, 74(4), 678–684. https://doi.org/10.1093/cid/ciab708

Starke JR, Erkens C, Ritz N, & Kitai I. (2022). Strengthening Tuberculosis Services for Children and Adolescents in Low Endemic Settings. Pathogens, 11(2). https://doi.org/10.3390/pathogens11020158

Bruningk, Sarah C., Klatt, Juliane, Stange, Madlen, Mari, Alfredo, Brunner, Myrta, Roloff, Tim-Christoph, Seth-Smith, Helena M. B., Schweitzer, Michael, Leuzinger, Karoline, Sogaard, Kirstine K., Torres, Diana Albertos, Gensch, Alexander, Schlotterbeck, Ann-Kathrin, Nickel, Christian H., Ritz, Nicole, Heininger, Ulrich, Bielicki, Julia, Rentsch, Katharina, Fuchs, Simon, et al. (2022). Determinants of SARS-CoV-2 transmission to guide vaccination strategy in an urban area. Virus Evolution, 8(1), veac002. https://doi.org/10.1093/ve/veac002

Jaeger, F. N., Berger, C., Buettcher, M., Depallens, S., Heininger, U., Heller, Y., Kohns Vasconcelos, M., Leforestier, B., Pellaud, N., Relly, C., Truck, J., von Overbeck Ottino, S., Wagner, N., Ritz, N., Migrant Health Reference Group of Paediatrics Switzerland, & Paediatric Infectious Disease Group in Switzerland. (2022). Paediatric refugees from Ukraine: guidance for health care providers. Swiss Med Wkly, 152(21-22), w30200. https://doi.org/10.4414/smw.2022.w30200

Vaezipour, N., Fritschi, N., Brasier, N., Bélard, S., Domínguez, J., Tebruegge, M., Portevin, D., & Ritz, N. (2022). Towards accurate point-of-care tests for tuberculosis in children. Pathogens, 11(3), 327. https://doi.org/10.3390/pathogens11030327

Brandenberger J, Pohl C, Vogt F, Tylleskär T, & Ritz N. (2021). Health care provided to recent asylum-seeking and non-asylum-seeking pediatric patients in 2016 and 2017 at a Swiss tertiary hospital - a retrospective study. BMC Public Health, 21(1), 81. https://doi.org/10.1186/s12889-020-10082-z

Fritschi N, Schmidt AJ, Hammer J, Ritz N, & Swiss pediatric surveillance unit. (2021). Pediatric Tuberculosis Disease during Years of High Refugee Arrivals: A 6-Year National Prospective Surveillance Study. Respiration, 100(11), 1050–1059. https://doi.org/10.1159/000517029

Evers KS, Wellmann S, Donner BC, & Ritz N. (2021). Apparent life-threatening events and brief resolved unexplained events: management of children at a Swiss tertiary care center. Swiss Medical Weekly, 151(41-42), w30026. https://doi.org/10.4414/SMW.2021.w30026

Bamford A, Dixon G, Klein N, Marks SD, Ritz N, Welch SB, & Tebruegge M. (2021). Preventing tuberculosis in paediatric kidney transplant recipients: is there a role for BCG immunisation pre-transplantation in low tuberculosis incidence countries? Pediatric Nephrology, 36(10), 3023–3031. https://doi.org/10.1007/s00467-020-04844-5

Bamford A, Dixon G, Klein N, Marks S, Ritz N, Welch SB, & Tebruegge M. (2021). Correction to: Preventing tuberculosis in paediatric kidney transplant recipients: is there a role for BCG immunisation pre-transplantation in low tuberculosis incidence countries? (Pediatric Nephrology, (2021), 36, 10, (3023-3031), 10.1007/s00467-020-04844-5) (Patent No. 10). Pediatric Nephrology, 36(10), Article 10. https://doi.org/10.1007/s00467-020-04893-w

Noguera-Julian A, Buonsenso D, McKenna L, Seddon JA, & Ritz N. (2021). Availability of fixed-dose, child-friendly formulations of first-line tuberculosis drugs in Europe (Patent No. 3). European Respiratory Journal, 58(3), Article 3. https://doi.org/10.1183/13993003.01196-2021

von Hammerstein AL, Aebi C, Barbey F, Berger C, Buettcher M, Casaulta C, Egli A, Gebauer M, Guerra B, Kahlert C, Kellner E, Kottanattu L, Opota O, Mann C, Meyer Sauteur P, Plebani M, Ritz N, Testi C, von Niederhäusern V, et al. (2021). Interseasonal rsv infections in switzerland - rapid establishment of a clinician-led national reporting system (rsv epich). Swiss Medical Weekly, 151(35-36), w30057. https://doi.org/10.4414/SMW.2021.w30057

Prader S., Ritz N, Baleydier F., Andre M.C., Stahli N., Schmid K., Schmid H., Woerner A, Diesch T., Meyer Sauteur PM, Truck J., Gebistorf F., Opitz L., Killian M.P., Marchetti T., Vavassori S., Blanchard-Rohner G., Mc Lin V., Grazioli S, & Pachlopnik Schmid J. (2021). X-Linked Lymphoproliferative Disease Mimicking Multisystem Inflammatory Syndrome in Children—A Case Report [Frontiers Media S.A.]. Frontiers in Pediatrics, 9, 691024. https://doi.org/10.3389/fped.2021.691024

Buser S, Brandenberger J, Gmünder M, Pohl C, & Ritz N. (2021). Asylum-Seeking Children with Medical Complexity and Rare Diseases in a Tertiary Hospital in Switzerland. Journal of Immigrant and Minority Health, 23(4), 669–679. https://doi.org/10.1007/s10903-020-01100-8

Diesch T, Filippi C, Fritschi N, Filippi A, & Ritz N. (2021). Cytokines in saliva as biomarkers of oral and systemic oncological or infectious diseases: A systematic review. Cytokine, 143, 155506. https://doi.org/10.1016/j.cyto.2021.155506

Groll AH, Pana D, Lanternier F, Mesini A, Ammann RA, Averbuch D, Castagnola E, Cesaro S, Engelhard D, Garcia-Vidal C, Kanerva J, Ritz N, Roilides E, Styczynski J, Warris A, Lehrnbecher T, & 8th European Conference on Infections in Leukaemia. (2021). 8th European Conference on Infections in Leukaemia: 2020 guidelines for the diagnosis, prevention, and treatment of invasive fungal diseases in paediatric patients with cancer or post-haematopoietic cell transplantation. The Lancet Oncology, 22(6), e254–e269. https://doi.org/10.1016/S1470-2045(20)30723-3

Lehrnbecher T, Averbuch D, Castagnola E, Cesaro S, Ammann RA, Garcia-Vidal C, Kanerva J, Lanternier F, Mesini A, Mikulska M, Pana D, Ritz N, Slavin M, Styczynski J, Warris A, Groll AH, & 8th European Conference on Infections in Leukaemia. (2021). 8th European Conference on Infections in Leukaemia: 2020 guidelines for the use of antibiotics in paediatric patients with cancer or post-haematopoietic cell transplantation. The Lancet Oncology, 22(6), e270–e280. https://doi.org/10.1016/S1470-2045(20)30725-7

Toelen J, Ritz N, & de Winter JP. (2021). Changes in pediatric infections during the COVID-19 pandemic: ‘a quarantrend for coronials’? (Patent No. 6). European Journal of Pediatrics, 180(6), Article 6. https://doi.org/10.1007/s00431-021-03986-4

Uka, A., Buettcher, M., Bernhard-Stirnemann, S., Fougère, Y., Moussaoui, D., Kottanattu, L., Wagner, N., Zimmermann, P., Ritz, N., & (SPSU), S. P. S. U. (2021). Factors Associated With Hospital and Intensive Care Admission in Paediatric SARS-CoV-2 Infection: A Prospective Nationwide Observational Cohort Study [Posted-content]. Research Square Platform LLC. https://doi.org/10.21203/rs.3.rs-517119/v1

Schlapbach LJ, Andre MC, Grazioli S, Schöbi N, Ritz N, Aebi C, Agyeman P, Albisetti M, Bailey DGN, Berger C, Blanchard-Rohner G, Bressieux-Degueldre S, Hofer M, L’Huillier AG, Marston M, Meyer Sauteur PM, Pachlopnik Schmid J, Perez MH, Rogdo B, et al. (2021). Best Practice Recommendations for the Diagnosis and Management of Children With Pediatric Inflammatory Multisystem Syndrome Temporally Associated With SARS-CoV-2 (PIMS-TS; Multisystem Inflammatory Syndrome in Children, MIS-C) in Switzerland. Frontiers in Pediatrics, 9, 667507. https://doi.org/10.3389/fped.2021.667507

Margineanu I, Mor Z, Garcia D, Gilpin C, Dhawan S, Ritz N, & Zenner D. (2021). TB and COVID-19 in migrants-the need to focus on both conditions (Patent No. 5). International Journal of Tuberculosis and Lung Disease, 25(5), Article 5. https://doi.org/10.5588/ijtld.21.0067

von Both U, Gerlach P, Ritz N, Bogyi M, Brinkmann F, & Thee S. (2021). Management of childhood and adolescent latent tuberculous infection (LTBI) in Germany, Austria and Switzerland. PLoS ONE, 16(5 May 2021), e0250387. https://doi.org/10.1371/journal.pone.0250387

Zimmermann P, Ritz N, Perrett KP, Messina NL, van der Klis FRM, & Curtis N. (2021). Correlation of Vaccine Responses. Frontiers in Immunology, 12, 646677. https://doi.org/10.3389/fimmu.2021.646677

Meier NR, Battegay M, Ottenhoff THM, Furrer H, Nemeth J, & Ritz N. (2021). HIV-Infected Patients Developing Tuberculosis Disease Show Early Changes in the Immune Response to Novel Mycobacterium tuberculosis Antigens. Frontiers in Immunology, 12, 620622. https://doi.org/10.3389/fimmu.2021.620622

Buettcher M, Trueck J, Niederer-Loher A, Heininger U, Agyeman P, Asner S, Berger C, Bielicki J, Kahlert C, Kottanattu L, Meyer Sauteur PM, Paioni P, Posfay-Barbe K, Relly C, Ritz N, Zimmermann P, Zucol F, Gobet R, Shavit S, et al. (2021). Swiss consensus recommendations on urinary tract infections in children. European Journal of Pediatrics, 180(3), 663–674. https://doi.org/10.1007/s00431-020-03714-4

Buettcher M, Trueck J, Niederer-Loher A, Heininger U, Agyeman P, Asner S, Berger C, Bielicki J, Kahlert C, Kottanattu L, Meyer Sauteur PM, Paioni P, Posfay-Barbe K, Relly C, Ritz N, Zimmermann P, Zucol F, Gobet R, Shavit S, et al. (2021). Correction to: Swiss consensus recommendations on urinary tract infections in children. (Patent No. 3). 180(3), Article 3. https://doi.org/10.1007/s00431-020-03820-3

Pittet LF, Tebruegge M, Dutta B, Donath S, Messina N, Casalaz D, Hanekom WA, Britton WJ, Robins-Browne R, Curtis N, Ritz N, & BCG Immune Response Study (BIRS) group. (2021). Mycobacterium ulcerans-specific immune response after immunisation with bacillus Calmette-Guérin (BCG) vaccine. Vaccine, 39(4), 652–657. https://doi.org/10.1016/j.vaccine.2020.11.045

Meier NR, Sutter TM, Jacobsen M, Ottenhoff THM, Vogt JE, & Ritz N. (2021). Machine Learning Algorithms Evaluate Immune Response to Novel Mycobacterium tuberculosis Antigens for Diagnosis of Tuberculosis. Frontiers in Cellular and Infection Microbiology, 10, 594030. https://doi.org/10.3389/fcimb.2020.594030

Zimmermann P, Goetzinger F, & Ritz N. (2020). Additional Concerns Regarding Children with Coronavirus Disease 2019. JAMA Pediatrics, 174(12), 1215–1216. https://doi.org/10.1001/jamapediatrics.2020.2916

Zimmermann P., Ritz N., Curtis N., & Tebruegge M. (2020). In Reference to The Management of Nontuberculous Mycobacterial Cervicofacial Lymphadenitis: A View Beyond Surgery. Laryngoscope, 130(12), E945–E946. https://doi.org/10.1002/lary.28608

Noguera-Julian A, Calzada-Hernández J, Brinkmann F, Basu Roy R, Bilogortseva O, Buettcher M, Carvalho I, Chechenyeva V, Falcón L, Goetzinger F, Guerrero-Laleona C, Hoffmann P, Jelusic M, Niehues T, Ozere I, Shackley F, Suciliene E, Welch SB, Schölvinck EH, et al. (2020). Tuberculosis disease in children and adolescents on therapy with antitumor necrosis factor - A agents: A collaborative, multicenter paediatric tuberculosis network European Trials Group (ptbnet) Study. Clinical Infectious Diseases, 71(10), 2561–2569. https://doi.org/10.1093/cid/ciz1138

Fritschi N, Curtis N, & Ritz N. (2020). Bacille Calmette Guérin (BCG) and new TB vaccines: Specific, cross-mycobacterial and off-target effects. Paediatric Respiratory Reviews, 36, 57–64. https://doi.org/10.1016/j.prrv.2020.08.004

Usemann J, Alves MP, Ritz N, Latzin P, & Müller L. (2020). Age-dependent response of the human nasal epithelium to rhinovirus infection (Patent No. 5). European Respiratory Journal, 56(5), Article 5. https://doi.org/10.1183/13993003.00877-2020

Gotzinger F., Santiago-Garcia B., Noguera-Julian A., Lanaspa M, Lancella L., Calo Carducci F.I., Gabrovska N., Velizarova S, Prunk P., Osterman V., Krivec U., Lo Vecchio A, Shingadia D., Soriano-Arandes A., Melendo S., Lanari M., Pierantoni L., Wagner N., L’Huillier AG, et al. (2020). COVID-19 in children and adolescents in Europe: a multinational, multicentre cohort study. The Lancet Child and Adolescent Health, 4(9), 653–661. https://doi.org/10.1016/s2352-4642(20)30177-2

Merbecks M.B., Ziesenitz V.C., Rubner T., Meier N., Klein B., Rauch H., Saur P., Ritz N., Loukanov T., Schmitt S., & Gorenflo M. (2020). Intermediate monocytes exhibit higher levels of TLR2, TLR4 and CD64 early after congenital heart surgery. Cytokine, 133. https://doi.org/10.1016/j.cyto.2020.155153

Ritz N., & de Winter J.P. (2020). COVID-19 in children: patiently and critically evaluate the scientific evidence. European Journal of Pediatrics, 179(8), 1179–1180. https://doi.org/10.1007/s00431-020-03708-2

Gmunder M., Brandenberger J., Buser S., Pohl C, & Ritz N. (2020). Reasons for admission in asylum-seeking and non-asylum-seeking patients in a paediatric tertiary care centre. Swiss Medical Weekly, 150(21-22), w20252. https://doi.org/10.4414/smw.2020.20252

Brandenberger J., Bozorgmehr K., Vogt F., Tylleskar T., & Ritz N. (2020). Preventable admissions and emergency-department-visits in pediatric asylum-seeking and non-asylum-seeking patients. International Journal for Equity in Health, 19(1). https://doi.org/10.1186/s12939-020-01172-w

Brandenberger J.R., Baauw A., Kruse A., & Ritz N. (2020). The global COVID-19 response must include refugees and migrants. Swiss Medical Weekly, 150, w20263. https://doi.org/10.4414/smw.2020.20263

Egli, Adrian, Goldman, Nina, Müller, Nicola F., Brunner, Myrta, Wüthrich, Daniel, Tschudin-Sutter, Sarah, Hodcroft, Emma, Neher, Richard, Saalfrank, Claudia, Hadfield, James, Bedford, Trevor, Syedbasha, Mohammedyaseen, Vogel, Thomas, Augustin, Noémie, Bauer, Jan, Sailer, Nadine, Amar-Sliwa, Nadezhda, Lang, Daniela, Seth-Smith, Helena M.B., et al. (2020). High-resolution influenza mapping of a city reveals socioeconomic determinants of transmission within and between urban quarters [Posted-content]. bioRxiv. https://doi.org/10.1101/2020.04.03.023135

Dierig A., Hirsch H.H., Decker M.-L., Bielicki J.A., Heininger U., & Ritz N. (2020). Mycoplasma pneumoniae detection in children with respiratory tract infections and influence on management – a retrospective cohort study in Switzerland. Acta Paediatrica, International Journal of Paediatrics, 109(2), 375–380. https://doi.org/10.1111/apa.14891

Manz, Nora, Krieg, Andreas H., Buettcher, Michael, Ritz, Nicole, & Heininger, Ulrich. (2020). Long-Term Outcomes of Acute Osteoarticular Infections in Children. Frontiers in pediatrics, 8, 587740. https://doi.org/10.3389/fped.2020.587740

Müller, Nicola F., Wüthrich, Daniel, Goldman, Nina, Sailer, Nadine, Saalfrank, Claudia, Brunner, Myrta, Augustin, Noémi, Seth-Smith, Helena Mb, Hollenstein, Yvonne, Syedbasha, Mohammedyaseen, Lang, Daniela, Neher, Richard A., Dubuis, Olivier, Naegele, Michael, Buser, Andreas, Nickel, Christian H., Ritz, Nicole, Zeller, Andreas, Lang, Brian M., et al. (2020). Characterising the epidemic spread of influenza A/H3N2 within a city through phylogenetics. PLoS Pathogens, 16(11), e1008984. https://doi.org/10.1371/journal.ppat.1008984

Zimmermann P., Perrett K.P., Ritz N., Flanagan K.L., Robins-Browne R., van der Klis F.R.M., Curtis N., Abruzzo V., Allen K., Bonnici R., Casalaz D., Elborough H., Freyne B., Gardiner K., Germano S., Kollmann T., Messina N., Morrison C., Nakaya H., et al. (2020). Biological sex influences antibody responses to routine vaccinations in the first year of life. Acta Paediatrica, International Journal of Paediatrics, 109(1), 147–157. https://doi.org/10.1111/apa.14932

Schrier L, Wyder C, Del Torso S, Stiris T, von Both U, Brandenberger J, & Ritz N. (2019). Medical care for migrant children in Europe: a practical recommendation for first and follow-up appointments (Patent No. 9). European Journal of Pediatrics, 178(9), Article 9. https://doi.org/10.1007/s00431-019-03405-9

Zimmermann P., Perrett K.P., Messina N.L., Donath S., Ritz N., van der Klis F.R.M., & Curtis N. (2019). The Effect of Maternal Immunisation During Pregnancy on Infant Vaccine Responses. EClinicalMedicine, 13, 21–30. https://doi.org/10.1016/j.eclinm.2019.06.010

Zimmermann P., Donath S., Perrett K.P., Messina N.L., Ritz N., Netea M.G., Flanagan K.L., van der Klis F.R.M., & Curtis N. (2019). The influence of neonatal Bacille Calmette-Guérin (BCG) immunisation on heterologous vaccine responses in infants. Vaccine, 37(28), 3735–3744. https://doi.org/10.1016/j.vaccine.2019.03.016

Meier NR, Volken T, Geiger M, Heininger U, Tebruegge M, & Ritz N. (2019). Risk factors for indeterminate interferon-gamma release assay for the diagnosis of tuberculosis in children - A systematic review and meta-analysis [Frontiers Media S.A.info@frontiersin.org]. Frontiers in Pediatrics, 7, 208. https://doi.org/10.3389/fped.2019.00208

Mack I, & Ritz N. (2019). African tick-bite fever. New England Journal of Medicine, 380(10), 960. https://doi.org/10.1056/nejmicm1810093

Agnetti, Jessica, Seth-Smith, Helena M. B., Ursich, Sebastian, Reist, Josiane, Basler, Marek, Nickel, Christian, Bassetti, Stefano, Ritz, Nicole, Tschudin-Sutter, Sarah, & Egli, Adrian. (2019). Clinical impact of the type VI secretion system on virulence of Campylobacter species during infection. BMC Infectious Diseases, 19(1), 237. https://doi.org/10.1186/s12879-019-3858-x

Brandenberger, Julia, Sontag, Katrin, Duchêne-Lacroix, Cédric, Jaeger, Fabienne Nicole, Peterhans, Bernadette, & Ritz, Nicole. (2019). Perspective of asylum-seeking caregivers on the quality of care provided by a Swiss paediatric hospital : a qualitative study. BMJ Open, 9(9), e029385. https://doi.org/10.1136/bmjopen-2019-029385

Brandenberger, Julia, Tylleskär, Thorkild, Sontag, Katrin, Peterhans, Bernadette, & Ritz, Nicole. (2019). A systematic literature review of reported challenges in health care delivery to migrants and refugees in high-income countries - the 3C model. BMC Public Health, 19, 755. https://doi.org/10.1186/s12889-019-7049-x

Egli, Adrian, Saalfrank, Claudia, Goldman, Nina, Brunner, Myrta, Hollenstein, Yvonne, Vogel, Thomas, Augustin, Noémie, Wüthrich, Daniel, Seth-Smith, Helena M. B., Roth, Elisa, Syedbasha, Mohammedyaseen, Müller, Nicola F., Vogt, Dominik, Bauer, Jan, Amar-Sliwa, Nadezhda, Meinel, Dominik M., Dubuis, Olivier, Naegele, Michael, Tschudin-Sutter, Sarah, et al. (2019). Identification of influenza urban transmission patterns by geographical, epidemiological and whole genome sequencing data: protocol for an observational study. BMJ Open, 9(8), e030913. https://doi.org/10.1136/bmjopen-2019-030913

Mack I, Wildhaber B, Vassen V, & Ritz N. (2019). Alveolar echinococcosis in the liver of an adolescent boy. Archives of Disease in Childhood, 104(4), 407. https://doi.org/10.1136/archdischild-2018-314990

Tebruegge M., Ritz N., Donath S., Dutta B., Forbes B., Clifford V., Zufferey C., De Rose R., Robins-Browne R.M., Hanekom W., Graham S.M., Connell T., & Curtis N. (2019). Mycobacteria-specific mono- And polyfunctional CD4+ T cell profiles in children with latent and active tuberculosis: A prospective proof-of-concept study. Frontiers in Immunology, 10(APR). https://doi.org/10.3389/fimmu.2019.00431

Usemann, J., Ledergerber, M., Fink, G., & Ritz, N. (2019). Cost-effectiveness of tuberculosis screening for migrant children in a low-incidence country. International Journal of Tuberculosis and Lung Disease, 23(5), 579–586. https://doi.org/10.5588/ijtld.18.0356

Fuchs A., Gotta V, Decker ML, Szinnai G, Baumann P, Bonhoeffer J., Ritz N, Ritz N, Baer G., Berthet G., Bonhoeffer J.M., Buettcher M., Gambon M., Heininger U., Mueller B., Schaad U.B., Schuetz P., & Trachsel D. (2018). Cytokine kinetic profiles in children with acute lower respiratory tract infection: a post hoc descriptive analysis from a randomized control trial. Clinical Microbiology and Infection, 24(12), 1341. https://doi.org/10.1016/j.cmi.2018.03.016

Meier NR, Jacobsen M, Ottenhoff THM, & Ritz N. (2018). A systematic review on novel mycobacterium tuberculosisantigens and their discriminatory potential for the diagnosis of latent and active tuberculosis. Frontiers in Immunology, 9(NOV), 2476. https://doi.org/10.3389/fimmu.2018.02476

Usemann, J., Ledergerber, M., Fink, G., & Ritz, N. (2018). Cost-Effectiveness of Tuberculosis Screening for Migrant Children in Low-Incidence countries [Proceedings-article]. PA3868. https://doi.org/10.1183/13993003.congress-2018.pa3868