The Alaska Department of Health and Social Services announced Wednesday that a second test administered on a 1-year-old girl suspected to have measles came back negative.
A first nasal swab, taken on Jan. 19, indicated that the Anchorage girl tested positive for measles. She and her family had recently traveled to Southern California, where a measles outbreak was ongoing. On Jan. 13, a day after they returned, the girl received a measles vaccination. Within the next few days, she developed a rash and fever.
DHSS began investigating the case Friday. Results from a second nasal swab concluded that the girl carried a strain from the vaccination. According to the U.S. Centers for Disease Control and Prevention, one in every six people will experience a fever after receiving the measles, mumps and rubella vaccination. One in 20 will develop a mild rash.
An Alaskan has not tested positive for measles since 2000, according to DHSS.