SACRAMENTO COUNTY, CA (MPG) - Sacramento County Public Health (SCPH) has confirmed one case of measles in a child who was seen at the UC Davis Medical Center Emergency Department between noon and 5 p.m. March 5.

Unvaccinated persons or those with unknown vaccination status who were in the UC Davis Medical Center Emergency Department during the aforementioned time are at risk of developing measles from seven to 21 days after being exposed.

Individuals possibly exposed should follow three steps.

The first step is to review their immunization and medical records to determine if they are protected against measles. Individuals who have not had measles infection previously or who have not received the​e measles immunization might not be protected from the measles virus. These individuals should talk with a healthcare provider about receiving measles, mumps and rubella (MMR) immunization.

The second step is to contact by phone or email and notify their health care provider as soon as possible about a potential exposure if they are pregnant, an infant, have a weakened immune system and/or are not immunized, regardless of vaccination history. Do not go to your provider in-person or go to the emergency department for potential exposure.

The third step is to monitor themselves for illness with fever and/or an unexplained rash from 7 to 21 days after their exposure (the time period when symptoms may develop); if symptoms develop, stay at home and call a healthcare provider immediately. If you become ill enough that you need to seek medical attention in person, please wear a mask and inform the registration staff that you have had a measles exposure so that appropriate isolation can occur in the healthcare setting.

UC Davis Medical Center, Sacramento County Public Health (SCPH) and Public Health and Health Departments in surrounding counties are contacting identified patients to assess their immunization status and provide guidance to individuals who were exposed.