Measles has sickened nearly 150 mostly unvaccinated people in rural West Texas, and a school-age child has died.

A gene therapy to correct a mutation that causes maple syrup urine disease prevented newborn death and normalized growth in a calf as well as in mice.

Measles has sickened nearly 150 mostly unvaccinated people in rural West Texas, and a school-age child has died. The virus is spreading among Gaines County’s Mennonite community, where government ...