Contagious Diseases

The Delta variant has caused more breakthrough cases in vaccinated people than other strains. Experts told Newsweek what this means for future mutations that may be even more contagious.

There have been 87 outbreak-associated cases reported in Utah.

The global health community is responding to the death of a health care worker from the Marburg virus, a highly infectious disease that is "clinically similar" to Ebola

Freelance cameraman who was tested Thursday will be airlifted to the U.S. for treatment

Isolating countries in west Africa that have experienced an outbreak of the disease in order to prevent it from spreading here would be "quick, simple -- and wrong," the director of the CDC said in a press briefing Thursday.

For the Ebola outbreak to end in six to nine months, a "massive" global response is needed

Doctors are among the 660 people who have died from the Ebola outbreak.

Sheik Umar Khan, 39, has treated more than 100 victims