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PAHO
WHO's regional office for the Americas, founded 1902 and headquartered in Washington.
18 of 18 entries (16 events, 2 interactions)
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#14 27 Sept
Counted mammal outbreaks down 64.8%
Pandemics and Biosecurity: Cambodia confirms sixth human H5N1 case#14 24 Sept
Counted 53,957 confirmed cases in 17 countries
Pandemics and Biosecurity: Peru overtakes Guatemala on new measles#14 24 Sept
#14 24 Sept
Pandemics and Biosecurity · source event
#14 14 Sept
Mentioned in: Bangladesh: 1,030 die of measles in 2026
Pandemics and Biosecurity#13 8 Aug
Mentioned in: Somalia's 42 measles deaths on 730 cases
Pandemics and Biosecurity#13 7 Aug
Published Guatemala and Mexico's confirmed case counts
Pandemics and Biosecurity: Guatemala passes Mexico on measles cases#9 30 Jun
Mentioned in: Measles nears a World Cup city
Pandemics and Biosecurity#8 17 Jun
Recorded 20,521 Americas measles cases in 2026 and issued surveillance recommendations ahead of the FIFA World Cup
Pandemics and Biosecurity: Measles shadows the 2026 World Cup#7 8 Jun
Mentioned in: Mexico measles surge meets World Cup
Pandemics and Biosecurity#2 12 May
Mentioned in: ECDC counts 11 Andes cases, three more than WHO
Pandemics and Biosecurity#2 10 May
Mentioned in: CDC mandates airborne isolation for Andes patients
Pandemics and Biosecurity#2 9 May
Mentioned in: UK airdrops supplies to isolated island Andes case
Pandemics and Biosecurity#2 8 May
Mentioned in: WHO upgrades Hondius Andes risk to MODERATE
Pandemics and Biosecurity#1 1 May
Mentioned in: Emory aerosol study reframes dairy PPE
Pandemics and Biosecurity#1 1 May
Logged 75 cumulative H5N1 human cases in the Americas since 2022, with no new cases since 24 November 2025
Pandemics and Biosecurity: Idaho dairy H5N1 breaks five-month US lull#1 22 Apr
Expanded CEPI partnership on 14 April for regulatory and vaccine-safety capacity in the Americas
Pandemics and Biosecurity: Moderna begins Phase 3 H5N1 mRNA trial#1 19 Dec