Influenza viruses circulation in a tertiary care children hospital in Rome: a comparison between 2022 and the previous 5 years.
Ital J Pediatr
; 49(1): 121, 2023 Sep 13.
Article
en En
| MEDLINE
| ID: mdl-37705032
ABSTRACT
BACKGROUND:
Influenza surveillance aims to determine onset, duration and intensity of the seasonal Influence-like Illness (ILI); data collection begins in the week 42 of a year and ends in the week 17 of the following year. In this observational study, we report the experience of a tertiary care children hospital in Rome about Influenza viruses circulation during the calendar year 2022 (January-December) in comparison with the previous five years (2017-2021), with a special focus on the weeks 18-41, usually not under surveillance.METHODS:
This retrospective study involved 36782 respiratory samples referred to 21354 patients (pts), median age 2.63 years, admitted with respiratory symptoms at Bambino Gesù Children's Hospital in the years 2017-2022. Respiratory viruses were detected by molecular Allplex™ Respiratory Panel Assays (Seegene, Korea).RESULTS:
Regarding the pre pandemic years, 2017-2019, distribution of Flu positive patients focused in the first weeks of the year (weeks 1-17). During the pandemic period, Flu was not detected. In 2022, 239 Flu viruses were identified 37 FluA (weeks 1-17), 29 FluA (weeks 18-41) and 168 FluA and 5 FluB (weeks 42-52). For the year 2022, during the non-epidemic period, the number of Flu viruses detected corresponded to 12.1% of total Flu detected, respect to 0-1.7% for the previous five years (p < 0.001).CONCLUSIONS:
When compared with pre SARS-CoV-2 pandemic years, our data show a significant increase in Influenza cases during weeks 18-41/2022 and reveal an unexpected summer circulation of these viruses just weeks 26-30 showed to be influenza virus free. A national year-round Flu surveillance could be useful to understand if changing in influenza epidemiology is transitional or likely to persist in the following years.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Orthomyxoviridae
/
Gripe Humana
/
COVID-19
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Child
/
Child, preschool
/
Humans
País/Región como asunto:
Europa
Idioma:
En
Revista:
Ital J Pediatr
Asunto de la revista:
PEDIATRIA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Italia