Health officials warned that measles outbreaks in North America threaten the region’s elimination status achieved in 2016. The Pan-American Health Organization reported a significant rise in cases, primarily in the U.S. and Canada, attributed to low vaccination rates and increased human movement. The rise poses a risk of endemic transmission, reversing years of public health efforts. Measles elimination requires no endemic spread for at least 12 months, a situation that could change if current trends persist. Other contributing factors include misdiagnoses due to dengue and vaccine hesitancy.
"The risk of outbreaks has increased, given the increase in measles cases worldwide, coupled with factors such as low coverage of the first and second doses of measles, mumps, and rubella vaccine."
"Health officials define 'measles elimination' as proof of no endemic spread of the highly contagious virus within an area for at least 12 months."
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