Cases of COVID-19 are now likely growing in 25 states, according to estimates published by the Centers for Disease Control and Prevention on Friday, as this year's summer wave of the virus appears to be getting underway.

House Democrats on the Oversight Committee are calling for an urgent briefing with staff from the Centers for Disease Control and Prevention (CDC), demanding answers over recent moves that have taken place among the agency's vaccine advisory panel, ABC News can exclusively report.

The US Centers for Disease Control and Prevention on Wednesday tallied the highest number of US measles cases since the disease was declared eliminated a quarter-century ago, just as a key Senate committee split the vote to advance President Donald Trump’s nominee to lead the public health agency.

Doctors stress importance of tick prevention as CDC reports sharp increase in related emergency room visits in 2025.

The Senate Committee on Health, Education, Labor and Pensions (HELP) voted to advance Susan Monarez's nomination as director of the Centers for Disease Control and Prevention (CDC) on Wednesday. The panel voted along party lines 12-11.

If confirmed by the full Senate, Monarez would be the first CDC director to go through Senate confirmation, a process put into place in 2023. Monarez, 50, was named acting CDC director in January after former nominee Dr. David Weldon was withdrawn. She was nominated in March by President Donald Trump.

When checking for ticks, it's important to be thorough. According to Cleveland Clinic, ticks tend to prefer warm areas of the body, such as under the arms or behind the knees.

Measles cases in the United States have reached their highest number in more than 30 years, according to new federal data published Wednesday.

This summer's May and June spikes in tick bites are the largest for at least five years in the Northeast, according to data from the CDC

Doctors and researchers said the moves will make it harder to detect potentially dangerous changes. If the virus continues to jump between species or the human case count grows, there’s a greater risk that it could mutate and become more easily transmissible between people,