A resurgence of measles cases in the US has reversed decades of progress, as declining vaccination rates threaten to undo the near-elimination of the disease achieved by 2000. Public health officials warn that outbreaks linked to low immunization coverage pose renewed risks, particularly in communities where vaccine confidence has waned. The reemergence highlights ongoing challenges in maintaining herd immunity and the potential consequences of waning protection against a highly contagious illness. Experts emphasize the importance of vaccination as a critical tool in preventing further spread.
The US had largely eliminated measles by 2000 but has seen several outbreaks amid declining vaccination rates.