0000000000741486
AUTHOR
Antonino Bella
Tracking the progressive spread of the SARS-CoV-2 Omicron variant in Italy, December 2021 to January 2022
Background The SARS-CoV-2 variant of concern Omicron was first detected in Italy in November 2021. Aim To comprehensively describe Omicron spread in Italy in the 2 subsequent months and its impact on the overall SARS-CoV-2 circulation at population level. Methods We analyse data from four genomic surveys conducted across the country between December 2021 and January 2022. Combining genomic sequencing results with epidemiological records collated by the National Integrated Surveillance System, the Omicron reproductive number and exponential growth rate are estimated, as well as SARS-CoV-2 transmissibility. Results Omicron became dominant in Italy less than 1 month after its first detection,…
Rotavirus and not age determines gastroenteritis severity in children: a hospital-based study.
Background The severity of childhood gastroenteritis is generally believed to be age-related rather than aetiologyrelated. Rotavirus-induced gastroenteritis is more severe than gastroenteritis caused by other enteric pathogens and is also age-related. We thus addressed the question of whether the increased severity of rotavirus-induced gastroenteritis is related to age or to features intrinsic to the agent. Study design In this multicentre, hospital-based, prospective survey, we evaluated the severity of diarrhoea in rotavirus-positive and rotavirus-negative children up to 4 years of age. Severity was assessed with a score in four groups of age-matched children. Results Rotavirus was detect…
MOESM2 of Co-circulation of the two influenza B lineages during 13 consecutive influenza surveillance seasons in Italy, 2004–2017
Additional file 2: Figure S1. Violin plot comparing the median values (white dots), interquartile range (thick blue bar in the center) and distributions of age between influenza B/Victoria- and B/Yamagata-lineage cases.
MOESM1 of Co-circulation of the two influenza B lineages during 13 consecutive influenza surveillance seasons in Italy, 2004–2017
Additional file 1: Table S1. GISAID accession numbers (AN) for hemagglutinin (HA) of influenza B viruses generated in this study (*) and used for the phylogenetic analysis, along with other Italian sequences retrieved from GISAID or NCBI database and reference and WHO vaccine strains (in bold).