New measles cases in Virginia and Idaho have brought the total number of measles-affected states to 28 in the past week, according to The Hill.
The CDC reported 1,022 measles cases nationwide as of June 6, the worst count since 1992. Officials warn the U.S. could lose its measles elimination status if the case count continues to rise. The country's two largest measles outbreaks are concentrated in New York's Rockland County and New York City, with most cases affecting the area's Orthodox Jewish community.
"We cannot say this enough: Vaccines are a safe and highly effective public health tool that can prevent this disease and end the current outbreak," said HHS Secretary Alex Azar in a June 5 statement.