Hatem Ali/AP
OSAKA METROPOLITAN UNIVERSITY/KYOTO UNIVERSITY/RYUUNOSUKE TAKESHIGE
WHO questions China about a mystery illness linked to pneumonia as hospitals fill with sick children
Martin Puddy/Getty Images
Science, news-uk, uk-weekend, China, WHO
Libkos/ AP Photo
Fadel Senna/Getty Images
Getty Images
Getty Images
Sasha Mordovets
NASA Worldview