Norovirus outbreaks in a nursery school in Buenos Aires, Argentina.

Norovirus (NoV) is the leading cause of outbreaks of acute gastroenteritis worldwide. These are non-enveloped viruses that are classified into 10 genogroups, of which genogroup I (GI), II (GII), IV (GIV), VIII (GVIII), and IX (GIX) are the ones that infect humans. Two outbreaks (A and B) of acute gastroenteritis that occurred in a nursery school are described.

Description of the characteristics of patients with diseases associated with immunosuppression and Cryptosporidium spp. infection seen at a referral children's hospital in Argentina, 2018-2023.

Cryptosporidium spp. is a diarrhea-causing protozoan. Immunocompromised patients may develop severe and persistent clinical forms.

Enteric viruses other than rotavirus and norovirus in children under 5 years of age with gastroenteritis in Argentina, 2010-2021. A descriptive study.

Introduction. Data on the frequency of enteric adenoviruses, sapoviruses, and astroviruses in cases of sporadic acute gastroenteritis in Argentina are scarce. Methods.

National survey for pediatricians in Argentina: Vaccination in daily practice, perception of knowledge and barriers.

Introduction. The decline in vaccination coverage has been very significant in the past decade. Pediatricians play a key role in catching-up coverage and increasing confidence in vaccination.

Genetic diversity of rotavirus A in Argentina during 2019-2022: detection of G6 strains and insights regarding its dissemination.

One of the challenges associated with introducing a vaccine is monitoring its impact through clinical and molecular surveillance. The aims of this study were to analyze the genetic diversity of rotavirus A in Argentina between 2019 and 2022 and to assess the phylogenetic and phylodynamic features of the unusual G6 strains detected. A significant decline in the Wa-like genogroup strains was observed, and G6 strains were detected for the first time in Argentina, in association with P[8] and P[9].