January 25, 2024
Stay Alert for Measles Cases
Between December 1, 2023 and
January 23, 2024, the Centers for Disease Control and Prevention (CDC) was
notified of 23 confirmed U.S. cases of measles, including seven direct
importations of measles by international travelers and two outbreaks with more
than five cases each. Most of these cases were among children and adolescents who
had not received a measles-containing vaccine (MMR or MMRV), even if age eligible.
Due to the recent cases, healthcare providers
should be on alert for patients who have: (1) febrile rash illness and symptoms
consistent with measles (e.g., cough, coryza, or conjunctivitis), and (2) have recently traveled abroad, especially to countries with ongoing
measles outbreaks. Infected people are contagious from 4 days before the
rash starts through 4 days afterwards.
Measles cases often originate
from unvaccinated or undervaccinated U.S. residents who travel internationally
and then transmit the disease to people who are not vaccinated against measles.
The increased number of measles importations seen in recent weeks is reflective
of a rise in global measles cases and a growing global
threat from the disease.
Recommendations for Healthcare Providers
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