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As of early March, people have tested positive for the coronavirus in about 70 countries. Officials are taking "unprecedented" actions. (Video: The Washington Post)

Another 41 people test positive for coronavirus on quarantined cruise ship in Japan, health minister says

Another 41 people tested positive for the novel coronavirus on board the quarantined cruise ship Diamond Princess in Japan, bringing the total number of cases on the vessel to 61.

Coronavirus infections in mainland China also rose sharply again on Thursday to reach more than 31,000 confirmed cases, more than 4,800 of which were critical, authorities said Friday morning.

China has reported more than 630 coronavirus deaths, including one in Hong Kong, and one person has died in the Philippines.  

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Coronavirus: What you need to know

Covid isolation guidelines: Americans who test positive for the coronavirus no longer need to routinely stay home from work and school for five days under new guidance planned by the Centers for Disease Control and Prevention. The change has raised concerns among medically vulnerable people.

New coronavirus variant: The United States is in the throes of another covid-19 uptick and coronavirus samples detected in wastewater suggests infections could be as rampant as they were last winter. JN.1, the new dominant variant, appears to be especially adept at infecting those who have been vaccinated or previously infected. Here’s how this covid surge compares with earlier spikes.

Latest coronavirus booster: The CDC recommends that anyone 6 months or older gets an updated coronavirus shot, but the vaccine rollout has seen some hiccups, especially for children. Here’s what you need to know about the latest coronavirus vaccines, including when you should get it.