Pneumonia of unknown cause – China

A cluster of pneumonia cases of unknown cause has been reported in Wuhan City, Hubei Province of China, as of January 3, 2020. According to the World Health Organization (WHO), a total of 44 patients with pneumonia of unknown etiology have been reported to WHO by the national authorities in China.

Of the 44 cases reported, none have been confirmed as probable or suspected. No deaths have been reported, and therefore, the case fatality ratio is not applicable. The WHO has been informed of the situation and is closely monitoring the development.

The reported cases are confined to China, with no information available on the spread of the disease to other countries. The WHO has not reported any information on the transit context of the outbreak.

The public health response to the outbreak is being closely monitored by the WHO. For the latest updates on the situation, please refer to the WHO Disease Outbreak News bulletin at https://www.who.int/emergencies/disease-outbreak-news/item/2020-DON229.