US media: Confirmed cases of measles in the United States in 2026 have reached 4,410

China News Service, October 17. According to comprehensive US media reports, the latest data released by the US Centers for Disease Control and Prevention (CDC) on the 16th local time showed that there will be 4,410 confirmed cases of measles in the United States in 2026.

According to the American Broadcasting Corporation (ABC) report, the U.S. Centers for Disease Control and Prevention stated that 4,410 cases have been confirmed so far, most of which are from 45 states and Washington, DC. 18 of the confirmed cases this year involve international tourists to the United States.

The U.S. Centers for Disease Control and Prevention pointed out in its latest report that data shows that about 96% of cases occur in people who have not been vaccinated or whose vaccination status is unknown.

According to reports, measles cases have continued to increase in Pennsylvania recently. Local health officials have reported at least 1,200 cases of measles and six measles-related deaths.

A spokesperson for the U.S. Centers for Disease Control and Prevention said in a statement that Pennsylvania has formally requested CDC to provide assistance through related projects. "In response, CDC will support the state's needs and strengthen its local response efforts."

Previously, New York State declared a "disaster emergency" on the 5th due to the measles epidemic to respond to the increase in measles cases and expand the coverage of vaccination and testing services.

Data released by the U.S. Centers for Disease Control and Prevention on the 9th showed that as of the 8th, the United States had reported 4,080 confirmed cases of measles this year, exceeding the 2,289 cases in 2025 and the highest annual level since 1991.

Measles is an acute rash respiratory infectious disease caused by the measles virus and is mainly spread through respiratory droplets and aerosols. Infected people will develop symptoms such as high fever, cough, runny nose, tears, and rash within one to two weeks after being exposed to the virus. In severe cases, it can lead to complications such as pneumonia, and even death. The U.S. Centers for Disease Control and Prevention emphasizes that the best way to prevent measles is to get the measles, mumps, and rubella vaccine. When the vaccination rate of the community population exceeds 95%, most people can be protected through herd immunity.