The Delta Variant

What is the delta variant?

What makes the delta variant different?

What percentage of new cases are the delta variant?

Viruses constantly change through mutation, and new variants of a virus are expected to occur. The delta variant is one such variant that arose from a mutation. 

As a result of its mutations, the delta variant has increased transmissibility, meaning it can spread from person-to-person easier. 

From two weeks ending July 3rd, 2021, 57.1% of new COVID-19 cases in the United States were caused by the delta variant. In the New York area, 56.6% of new COVID-19 cases were caused by the delta variant in the same time period. 

Will the delta variant lead to widespread lockdowns?

Am I protected if I'm vaccinated?

The delta variant has the potential to create "mini-surges" in areas of the United States with low rates of vaccination.

The COVID-19 vaccine is effective against the delta variant. However, those who are unvaccinated are at risk. 

Dr. Fauci on the Delta Variant
The US Surgeon General on the Delta Variant
More Resources on the Delta Variant


N95 or KN95? What to know about face masks as the Delta variant spreads

Information about variants is constantly evolving and information is accurate to the time it was updated.