Weekly Health Quiz: Immunity, Contamination and Coronavirus

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1 of 9

The number of Americans known to have died from coronavirus now exceeds:

10,000

100,000

500,000

1 million

2 of 9

During the past couple weeks, new cases of cornavirus have increased in all of the following states except:

California

Florida

Maine

Pennsylvania

3 of 9

New cases of coronavirus are decreasing in all of the following states except:

New York

South Dakota

North Dakota

Colorado

4 of 9

After the United States, this country has the largest number of reported cases of coronavirus infection:

Italy

Brazil

Spain

Russia

5 of 9

After the United States, the greatest number of reported coronavirus deaths have been in this country:

United Kingdom

Italy

Iran

Brazil

6 of 9

Studies show that under ideal conditions, coronavirus can last how long on surfaces like plastic and steel?

3 hours

8 hours

24 hours

3 days

7 of 9

Increased vulnerability to coronavirus begins around this age, when immunity tends to decline and levels of inflammation rise:

55 years

60 years

65 years

70 years

8 of 9

Experts believe herd immunity to coronavirus will require that this percentage of the population becomes infected:

40 to 60 percent

60 to 80 percent

80 to 90 percent

90 to 100 percent

9 of 9

In New York City, where infection rates are thought to be highest, one survey of grocery store shoppers found about this percentage of people tested positive for antibodies to the virus:

5 percent

10 percent

20 percent

40 percent