This interactive map shows the spread of the virus that causes COVID-19 around the world since late January. Health officials in China first announced they were treating dozens of cases of an unknown illness on Dec. 31 and reported the first known death from the new coronavirus on Jan. 11. The data used to compile this map comes from Johns Hopkins University, which first shared its dashboard of cases, deaths and recoveries for affected countries on Jan. 22.

Source: Johns Hopkins CSSE

Graphic: Shelly Cheng, Nelson Hsu/ NBC Owned Television Stations

The Centers for Disease Control and Prevention recommends these seven tips to help prevent the spread of COVID-19.

With flu season well upon us, and concerns over the coronavirus growing, NBC 5’s Lauren Petty visited Northwestern Hospital and talked to Dr. Igor Koralnik. Koralnik shows us the right way to get your hands clean in 60 seconds.

Regular surgical face masks are not effective in protecting against the coronavirus. A more specialized face mask known as N95 respirators are thicker than surgical masks and are fitted to a person’s face to keep out any viral particles.