Outbreak Reaches

• De CDC bevestigde 51 extra mazelengevallen, waardoor het landelijke aantal infecties in de VS op 16 mei 2026 op 1.893 staat. • De instantie meldde dat alle behalve negen gevallen lokaal zijn opgelopen, dat er dit jaar 27 uitbraken zijn gemeld en dat 92% van de patiënten niet was gevaccineerd of een onbekende vaccinatiestatus had. • De uitbraak is significant omdat mazelen zich snel verspreiden in gemeenschappen met een lage vaccinatiegraad, en de VS is nu op weg om het aantal van 2.288 gevallen van vorig jaar te overschrijden als de transmissie aanhoudt.

• A measles outbreak in Washtenaw County, southeast Michigan, now includes 7 cases under investigation involving unvaccinated children and adults, with potential exposure at Trinity Health Ann Arbor Hospital's ER on March 21. • The latest case concerns a young child treated in Ypsilanti, raising concerns that ER visitors may have been exposed to the highly contagious virus. • All confirmed and suspected cases are among unvaccinated individuals, highlighting ongoing vaccination gaps amid the outbreak's growth reported on March 25.

The measles outbreak in Colorado tied to two Broomfield schools has grown to 10 cases, including two new confirmed infections and one suspected as of March 12. Public health teams are tracing exposures and urging quarantines. This cluster underscores vulnerabilities in school vaccination coverage amid rising national measles alerts. Officials plan expanded testing and contact tracing to halt further spread.

The measles outbreak linked to two schools in Broomfield, Colorado, has reached up to 10 cases, including two new confirmed infections and one suspected case reported on March 12. Public health officials are investigating exposures and urging vaccinations in the affected communities. This cluster highlights ongoing risks in under-vaccinated school groups amid national resurgence. Contact tracing and quarantine measures are ongoing to contain spread.