Coronavirus
Health experts explain transmission and infection, plus how you can protect yourself against the disease.
An outbreak could close schools for two months and cancel sports events. And as global cases grow, share prices are now on track for the worst week since the 2008 crash.
Officials say patient travelled from northern Italy via Dublin.
Schools could be closed for three months under Boris Johnson’s plan to tackle coronavirus in the UK.
The vice president has no medical experience – and that's not the only problem.
Prime Minister Shinzo Abe said he has asked schools to remain closed until spring holidays begin in late March.
The person had not been abroad and had no known contact with an infected person. The agency said it may be the first "community spread" case in the US.
Outbreaks of the disease are spreading, and parents want to keep their kids healthy.
Japan has shut down schools to stop the spread of Covid-19, and Saudi Arabia has closed its borders to foreign pilgrims.
The US president also referred to his own aversion to germs, saying: “I do it a lot anyway, as you’ve probably heard – wash your hands, stay clean".