Japan reports case of mystery virus behind China outbreak
Lethal virus traced in Japan
It appears to be only the second time the novel coronavirus has been detected outside China, after the World Health Organization (WHO) confirmed a case in Thailand.
Fighting the deadly disease
The health ministry urged people who develop a cough or fever after visiting Wuhan to wear a surgical mask and "swiftly visit a medical institution".
The woman diagnosed in Thailand, who is in a stable condition, also said she had not visited the Wuhan seafood market.