Known Pathogens Cause Rise in China's Respiratory Illness, Official Says

China's surge in respiratory illness is caused by known pathogens and there is no sign of new infectious diseases, a health official said Saturday as the country faces its first full winter since lifting its strict COVID-19 restrictions. The spike in illness in the country where COVID emerged in late 2019 attracted the spotlight when the World Health Organization sought information last week, citing a report of clusters of undiagnosed pneumonia in children. Chinese authorities will open more pediatric outpatient clinics...