Pan American Health Organization, 525 23rd Street NW, Washington, DC 20037, United States
Pan American Health Organization
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
Estimated: PAHO[1][2][3][4] has not announced 2027 dates, but the week is held in the last week of April and the 2026 edition ran "From 25 April to 2 May, 2026" (24th annual), so the pin repeats that Saturday-to-Saturday slot from 24 April 2027.PAHO and every country and territory in the Americas mark their 25th Vaccination Week at the end of April 2027, the yearly push to catch up children and adults on vaccines as measles spreads across the region.
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