The State Department raised its global travel advisory to a 'level four' on Thursday, a measure without precedent.
Analysts say social distancing best way to curb spread of virus as deadly pandemic is expected to worsen in coming days.
Italy's death toll from coronavirus pandemic rose to 3,405 overtaking total number of deaths so far registered in China.
Some states are taking sweeping action, while others are taking a limited approach. Here's a breakdown state by state.
Top politicians, celebrities and sportspeople have been infected as governments take strict measures to curb the virus.
As Greece sets rules for refugees to stop infection spreading, NGOs renew calls to clear overcrowded, unhygienic camps.
Hundreds protest outside parliament, denouncing government's new phone surveillance measure and the Knesset shutdown.
Group of intellectuals and activists held after calling for release of prisoners inside crowded, unhygienic facilities.