CDC Issues Health Advisory on Increase in Global and Domestic Measles Cases and Outbreaks
On March 18, CDC issued a Health Alert Network (HAN) health advisory to inform clinicians and public health officials of an increase in global and U.S. measles cases. This HAN also provides guidance on measles prevention for all international travelers ages six months and older and all children ages 12 months and older who do not plan to travel internationally. From January 1 to March 14, CDC has been notified of 58 confirmed U.S. cases of measles across 17 jurisdictions, including seven outbreaks in seven jurisdictions compared with 58 total cases and four outbreaks reported the entire year in 2023. Among the 58 cases reported in 2024, 54 (93%) were linked to international travel. Most cases reported in 2024 have been among children ages 12 months and older who had not received MMR vaccine. Many countries, including travel destinations such as Austria, the Philippines, Romania, and the United Kingdom, are experiencing measles outbreaks. To prevent measles infection and reduce the risk of community transmission from importation, all U.S. residents traveling internationally, regardless of destination, should be current on their MMR vaccinations. Health care providers should ensure children are current on routine immunizations, including MMR. Given currently high population immunity against measles in most U.S. communities, the risk of widescale spread is low. However, pockets of low coverage leave some communities at higher risk for outbreaks.
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