In Louisiana, one of the states most devastated by the coronavirus, about 70 percent of the people who have died are African-American, officials announced on Monday, though only a third of the state’s population is black.

In the county around Milwaukee, where 27 percent of residents are black, nearly twice as many African-American residents tested positive for the virus as white people, figures released this week show.

And in Chicago, where African-American residents make up a little less than a third of the population, more than half of those found to have the virus are black. The death toll there is even more alarming: African-American residents make up 72 percent of those who have succumbed to the virus in Chicago.