The US is facing a measles resurgence with 121 cases across 17 states in early 2024.

Declining vaccination rates and increased global incidents are key factors in the outbreak.

The CDC advises the MMR vaccine for those uncertain of their vaccination status, noting a 97% efficacy rate.

High vaccination coverage is essential, and vaccination before international travel is recommended to curb the virus spread.

Measles poses a risk of severe complications and hospitalization, particularly in adults, highlighting the need for enhanced vaccination efforts.