One of the most contagious diseases on the planet is having its worst U.S. outbreak since 1991
Summary
The United States is experiencing its worst measles outbreak since 1991, with the CDC recording a measles death and Pennsylvania officials reporting four deaths among unvaccinated people in recent weeks. The outbreak underscores the consequences of declining protection against a highly contagious disease.
Measles is again producing fatal outcomes in communities with insufficient vaccination coverage, turning a largely
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The outbreak will test whether public health authorities can restore vaccination coverage before transmission expands beyond unvaccinated communities.