Acting director of the World Health Organization's Department of Epidemic Preparedness and Prevention, Maria van Kerkhove, said the increase in cases of respiratory diseases currently in China "is not as large as it was before the Corona pandemic."

"No new or unusual pathogens have been detected in recent cases," the WHO official said.

Van Kerkhof explained that "the increase in cases of diseases appears to be due to the increase in the number of children who are infected with germs that cause diseases that they avoided for two years, due to the preventive measures imposed during the Corona pandemic."

The world is looking with concern at the health situation in China, as the central city of Wuhan was the cradle of the Corona epidemic in late 2019, and the devastating repercussions it caused on the health and economic situation for years worldwide.

The rise in respiratory diseases became a global problem last week when the World Health Organization asked China for more information, citing a report by the Emerging Disease Monitoring Program on children with pneumonia that has not yet been diagnosed.

On Sunday, China's health ministry said the country's spike in respiratory and chest diseases, which has drawn the attention of the World Health Organization, is caused by influenza and other causes, not including a new virus.

A spokesman for the National Health Commission said the recent wave of respiratory infections is caused by the overlap of common viruses such as influenza, rhinoviruses or respiratory syncytial virus, as well as bacteria such as microplasma pneumonia, a common cause of respiratory infections.

The ministry called on local authorities to open more fever clinics and boost vaccination campaigns for children and the elderly.