2024: San Diego County confirms third measles case, first since 2019; all cases involve unvaccinated individuals who traveled overseas.

San Diego County confirms third case of measles in 2024. The first case of measles this year occurred in an unvaccinated infant, while the second case involved a 47-year-old resident. All cases involve individuals who traveled overseas. The unimmunized 13-month-old child in the latest case may have exposed others at Children's Primary Care Medical Group and Rady Children's Emergency Department. This marks the first cases of measles in the county since 2019.