China's respiratory infections drop, but mosquito-borne risks linger ahead of Spring Festival

China is seeing a decline in respiratory system infections, with influenza and COVID-19 positivity rates dropping across most regions. However, health officials remain watchful as mosquito-borne diseases, though not currently active, still pose a risk from imported cases or overwintering mosquitoes in southern areas.

The upcoming Spring Festival holiday, with its surge in travel and gatherings, could further raise transmission risks for certain infections.

Recent data shows a downward trend in acute respiratory illnesses nationwide. Influenza activity has fallen to low or moderate levels in most areas, while COVID-19 and other respiratory pathogens, including RSV, maintain low test positivity rates. Rhinovirus, parainfluenza, and common coronaviruses continue to circulate, but at reduced levels.

Mosquito-borne diseases like dengue, chikungunya, and malaria are not spreading locally at present. Yet, southern China remains vulnerable to sporadic cases due to imported cases or mosquitoes surviving the winter. Officials have not detailed specific recent measures to counter these risks in warmer regions.

Authorities are urging closer monitoring of global disease trends, particularly in neighbouring countries where some infections remain endemic year-round. Local health departments have been advised to bolster preparedness for potential outbreaks and public health emergencies.

The overall decline in respiratory system infections offers some relief, but vigilance remains critical. With the Spring Festival approaching, increased movement and social interactions could heighten transmission risks. Health officials continue to stress the need for proactive measures to prevent imported cases and local flare-ups of mosquito-borne diseases.