The seasonal cycle of respiratory viral diseases has been widely recognized for thousands
of years, as annual epidemics of the common cold and influenza disease hit the human …

The objectives were (i) to conduct an overview of systematic reviews to summarize evidence
from and evaluate the methodological quality of systematic reviews assessing the impact of …

Abstract Coronavirus disease 2019 (COVID-19) was detected in China during the 2019–
2020 seasonal influenza epidemic. Non-pharmaceutical interventions (NPIs) and behavioral …

These clinical practice guidelines are an update of the guidelines published by the
Infectious Diseases Society of America (IDSA) in 2009, prior to the 2009 H1N1 influenza …

Background Influenza virus, respiratory syncytial virus, parainfluenza virus, and
metapneumovirus are the most common viruses associated with acute lower respiratory …

Background The effect of temperature and humidity on the incidence of influenza may differ
by climate region. In addition, the effect of diurnal temperature range on influenza incidence …

Globally, the spread and severity of COVID-19 have been distinctly non-uniform. Seasonality
was suggested as a contributor to regional variability, but the relationship between weather …

Human influenza infections exhibit a strong seasonal cycle in temperate regions. Recent
laboratory and epidemiological evidence suggests that low specific humidity conditions …

Background To date, no study has examined influenza vaccine effectiveness (IVE) against
laboratory-confirmed influenza-associated hospitalizations during pregnancy. Methods The …

A high neutrophil to lymphocyte ratio (NLR) is considered an unfavorable prognostic factor
in various diseases, including COVID-19. The prognostic value of NLR in other respiratory …