The measles outbreak in Texas has quickly grown to 146 cases. One child has died. NBC News answers readers' questions about the disease, vaccines and government response.

To achieve herd immunity - when enough of a group is immune to a disease, limiting its spread and protecting the unvaccinated ...

On Thursday, the public health department of Seattle & King County confirmed an infant had contracted the state’s first confirmed measles case of 2025.

Thus far, more than 160 cases have been reported in the states this year with one death in Texas. Some Rapid City families are concerned the disease may eventually reach the Mount Rushmore state.

The King County infant, diagnosed with measles after recent overseas travel, may have exposed others at several locations around the Puget Sound region, including Seattle Children's, Bellevue Square ...

Measles cases in Texas rose to 146 on Friday. The vast majority are connected to an outbreak in West Texas. And many of those patients -- nearly 50 of them -- are under the age of 4. Now some ...

Thousands of dolphins were spotted in California waters, swimming and jumping from the water. Public health officials say it ...

Americans are growing more concerned about the preventable virus as cases continue to rise in rural West Texas.

Seattle & King County confirmed a measles case in a King County infant, potentially exposed during recent international travel.

As the Texas measles outbreak grows and HHS head RFK Jr. puts vaccines under new scrutiny, two experts answer questions about the public health tool.

“We have measles outbreaks every year,” he added. Mr. Kennedy has also said in the past that immunizations against measles ...

Sec. RFK Jr. suggested measles outbreaks are normal. Here's everything you need to know about vaccines, herd immunity, ...