China says a surge in respiratory illnesses is caused by flu and other known pathogens
A surge in respiratory illnesses across China that has drawn the attention of the World Health Organization is caused by the flu and other known pathogens and not by a novel virus, the country's health ministry said Sunday.
A surge in respiratory illnesses across China that has drawn the attention of the World Health Organization is caused by the flu and other known pathogens and not by a novel virus, the country's health ministry said Sunday.