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US CDC says measles cases rise to 4,588 as outbreak continues

By Thomson Reuters Oct 23, 2026 | 9:45 AM

Oct 23 (Reuters) – The US CDC on Friday reported 4,588 measles cases in the country ​as of October 22, ‌up 178 from a week earlier, as an outbreak of the highly contagious disease continues.

Here are some key details:

• ‌Measles-related ​hospitalizations this year ⁠stand at 479, ⁠according to CDC

• The Pennsylvania state health department has reported five measles-related deaths so far in ​2026, but the CDC has confirmed only three measles-associated deaths

• ⁠Pennsylvania reported 1,338 ⁠measles cases so far ​as of October 23, with 255 ​hospitalizations, according to state health department ‌data

• Children and teenagers aged 5 to 19 constituted the largest group of people affected ⁠by the disease at 1,914, or 42% of all reported cases, followed by adults ⁠aged ‌20 and older at ⁠1,881 cases or 41%, ​CDC ‌data showed

• The CDC ​previously said ⁠it would deploy additional support to Pennsylvania to help investigate the outbreak

(Reporting by Siddhi Mahatole and Padmanabhan Ananthan in Bengaluru; Editing by ​Shinjini Ganguli)