The WHO has officially asked China for detailed information about the increase in respiratory diseases and reported clusters of pneumonia in children.
At a press conference on November 13, 2023, Chinese authorities at the National Health Commission reported an increase in the incidence of respiratory diseases in China. Chinese authorities attributed this increase to the lifting of COVID-19 restrictions and the spread of known pathogens such as influenza, Mycoplasma pneumoniae (a common bacterial infection that typically affects younger children), respiratory syncytial virus (RSV), and SARS-CoV-2 back (the virus that causes COVID-19). Authorities emphasized the need for improved disease surveillance in health facilities and community settings, as well as strengthening the health system’s capacity to care for patients.
On November 21st, media and ProMED reported clusters of undiagnosed pneumonia in children in northern China. It is unclear whether these are related to the general increase in respiratory infections previously reported by Chinese authorities or to individual events.
On November 22, WHO, through the International Health Regulations mechanism, requested additional epidemiological and clinical information and laboratory results on these reported clusters in children. We have also requested further information on current trends in the spread of known pathogens, including influenza, SARS-CoV-2, RSV and Mycoplasma pneumoniae, as well as the current burden on healthcare systems. WHO is also in contact with clinicians and scientists through our existing technical partnerships and networks in China.
Since mid-October, northern China has reported an increase in flu-like illnesses compared to the same period last year. China has systems in place to collect information on trends in influenza, influenza-like illness, RSV and SARS-CoV-2 and report it to platforms such as the Global Influenza Surveillance and Response System.
While WHO gathers this additional information, we recommend that people in China take measures to reduce the risk of respiratory diseases, which include recommended vaccination; keep your distance from sick people; staying at home when sick; get tested and receive medical care if needed; wear masks if necessary; ensuring good ventilation; and washing your hands regularly.
WHO will continue to provide updates.