Officials revealed that disparity on Wednesday as they announced that 779 more people in the state had died of the virus, the second straight day that deaths spiked to new highs.

The coronavirus is killing black and Latino people in New York City at twice the rate that it is killing white people, according to preliminary data released on Wednesday by the city.

The disparity reflected longstanding and persistent economic inequalities and differences in access to health care, Mayor Bill de Blasio said on Wednesday morning.

“There are clear inequalities, clear disparities in how this disease is affecting the people of our city,” Mr. de Blasio said. “The truth is that in so many ways the negative effects of coronavirus — the pain it’s causing, the death it’s causing — tracks with other profound health care disparities that we have seen for years and decades.”

The preliminary death rate for Hispanic people in the city is about 22 people per 100,000; the rate for black people is 20 per 100,000; the rate for white people is 10 per 100,000; and the rate for Asian people is 8 per 100,000. The rates are adjusted for the size and age of the population.