How the Coronavirus Variants Are Spreading in New York City

New, searchable ZIP code-level data provides a close look at how contagious variants have kept New York’s case levels alarmingly high.

The number of new coronavirus cases in New York City has remained alarmingly, and stubbornly, high for weeks, even as tens of thousands of people are vaccinated daily. A likely reason is that more contagious variants have displaced the original forms of the virus, public health officials have said, accounting for more than 75 percent of new cases, according to a recent analysis. Each week, the Health Department releases the results of a sampling of up to 1,500 sequenced cases, providing a citywide snapshot of which variants are on the rise.