Increased Risk of Influenza Infection During Cold Spells in China: National Time Series Study.

ABSTRACT:

Background

Studies have reported the adverse effects of cold events on influenza. However, the role of critical factors, such as characteristics of cold spells, and regional variations remain unresolved.

Objective

We aimed to systematically evaluate the association between cold spells and influenza incidence in mainland China.

Methods

This time series analysis used surveillance data of daily influenza from 325 sites in China in the 2014-2019 period. A total of 15 definitions of cold spells were adopted based on combinations of temperature thresholds and days of duration. A distributed lag linear model was used to estimate the short-term effects of cold spells on influenza incidence during the cool seasons (November to March), and we further explored the potential impa

SUBMITTER: Wang H 

PROVIDER: S-EPMC11336504 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature