The forecast for upcoming outbreaks failed to foresee the cluster of infections currently affecting Brooklyn.

Human natural killer cells, previously considered not to participate in adaptive immunity, remember viral antigens after initial exposures, according to a new study.

Health officials have asked students and staff potentially exposed to the virus and who either have not been vaccinated or cannot verify immunity to stay home.

There are now more cases of measles in America than in any year since the disease was eradicated nearly 20 years ago.

The World Health Organization and its partners will test the public health effect of immunization in parts of Malawi, Ghana, and Kenya.

The agency also shares preliminary results of an Ebola vaccine trial showing that it is 97.5 percent effective at protecting from infection.

So far this year, 465 infections have been reported, with numbers approaching their highest since measles returned to the country.

Most people who contracted the disease were unvaccinated and some state legislatures are now considering whether to curtail nonmedical vaccine exemptions.

The Mount Sinai oncologist studies innate immune cells with the goal of designing novel immunotherapies, including cancer vaccines.