The WHO had asked China for more information on Wednesday after groups including the Program for Monitoring Emerging Diseases (ProMED) reported clusters of undiagnosed pneumonia in children in north China.
No unusual pathogens have been detected in the capital of Beijing and the northeastern province of Liaoning.
The U.N. health agency had also asked China for further information about trends in the circulation of known pathogens and the burden on healthcare systems.
WHO China said it was "routine" to request information on increases in respiratory illnesses and reported clusters of pneumonia in children from member states, such as China.
The WHO said that while it was seeking additional information, it recommended that people in China follow measures to reduce the risk of respiratory illness.
Persons:
Dado Ruvic, pneumoniae, Ben Cowling, Deena Beasley, Andrew Silver, Jennifer Rigby, Emma Farge, Urvi, Robert Birsel, Miyoung Kim, Josie Kao
Organizations:
REUTERS, World Health Organization, WHO, International, National Health Commission, FTV News, Hong Kong University, Health Commission, Xinhua, Influenza, Thomson
Locations:
China, Beijing, Liaoning, Wuhan, WHO China, Taiwan, Los Angeles, Shanghai, London, Geneva, Bengaluru