Two Ephrata Mennonite School students diagnosed with measles on April 27 have recovered, and no additional school cases emerged after a 21-day quarantine ended May 18.
School officials said the two infections were in the same family and triggered quarantine measures and a May 11 vaccine clinic run with Pennsylvania's Department of Health.
Lancaster County recorded 4 measles cases in the past month, part of a regional cluster that includes 14 cases in Lebanon County and brings Pennsylvania's 2026 total to 32.
State health officials said only 2 Pennsylvania residents are currently contagious, while a May 19 Lancaster clinic delivered 67 MMR doses and 6 more clinics are planned.
The outbreak is hitting a school with sub-herd-immunity vaccination rates—48% of kindergartners, 93% of seventh graders and 88% of 12th graders—as U.S. measles cases reached 1,893 by May 14.
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