Investigators assume that global climate changes can influence upper respiratory tract infection peak prevalence, which may have significant clinical implication, for example, by adjusting seasonal Influenzas' vaccine timing. Therefore, the investigators will collect data from electronic medical database about patients tested positive for winter seasonal respiratory tract viruses from 2022 and compare the incidence to the meteorological profile of that season.
All patient with a positive nasopharyngeal swab for a respiratory virus
No medical record available
All patients with a positive nasopharyngeal swab for a respiratory virus - Influenza, RSV, Para-Influenza, Human MetaPneumoVirus, Rhinovirus.
Case-only
Retrospective
No Intervention: Observational Cohort
Other interventionNo intervention, observational retrospective study.
Incidence
Examining the incidence of severe upper respiratory tract illness (requiring hospital visits) in relation to weather changes over the last four seasons.
Morbidity
Analysis of winter morbidity trends among patients presenting to the hospital with Influenza. Including severity of illness (need for ICU admission, mechanical ventilation and/or inotropes assistance).
Mortality
Analysis of winter mortality trends among patients presenting to the hospital with Influenza. Including mortality during hospitalization or within 30 days.
recurrence
Analysis of upper respiratory tract infection recurrence trends among patients presenting to the hospital with Influenza. Including recurrent admission within 30 days.
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