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41 clusters · 212 sources · 194 days · First seen · Last updated

Measles surge in Americas: Regional outbreaks and responses

Overview

The measles outbreak across the Americas continues to pose significant public health challenges. In Mexico, the situation has escalated, with total infections reaching 20,350 and 50 deaths reported since February 2025. The outbreak has affected 528 municipalities across all 32 federal entities. Jalisco remains the hardest-hit state, recording 8,025 cases and five deaths, with high concentrations in Tlaquepaque, Tonalá, and Guadalajara. While no active cases were reported in Jalisco as of late October 2026, the Yucatán Peninsula has experienced a massive surge; cases in the region rose approximately 1,940% from 22 in 2025 to 449 in 2026, with Quintana Roo seeing 389 infections.

In Peru, health authorities have intensified vaccination efforts following the death of a 16-year-old in Mariscal Ramón Castilla who had not received required doses. In the Puno region, officials are targeting a 95% coverage rate to achieve herd immunity, though current progress in Carabaya is between 55% and 60%.

Chile has confirmed its third imported case of 2026, involving an 18-year-old traveler from Peru. Authorities are conducting active epidemiological surveillance and contact tracing to protect Chile’s “elimination of measles” status.

In Guatemala, cases have reached 32,566 with 32 deaths. Meanwhile, the United States recorded over 3,100 cases by September 2026, the highest annual level since 1991.

Entities

Pan American Health Organization · Mexico · Jalisco · Ministry of Health · Secretaría de Salud

Claims

What the coverage asserts, and how many sources carry each claim.

Timeline

  1. [HEALTH] 3 sources
    Mexico measles outbreak exceeds 20,000 cases

    Mexico reports over 20,000 measles cases and 50 deaths since February 2025, with Jalisco being the most affected state.

  2. [HEALTH] 2 sources
    Measles outbreak in Jalisco reaches 8,000 cases and five deaths

    Jalisco, Mexico, has reported 8,025 measles cases and five deaths during the 2025-2026 outbreak, with over 3 million vaccines administered.

  3. [HEALTH] 7 sources
    Chile confirms third imported measles case of 2026

    Chile has confirmed its third imported measles case of 2026, involving an unvaccinated 18-year-old traveler from Peru. Health officials are conducting contact tracing to prevent further transmission.

  4. [HEALTH] 4 sources
    Measles outbreaks surge in Yucatan Peninsula and Peru

    Measles cases are surging in Mexico's Yucatan Peninsula by 1,940%, while Peru intensifies vaccination campaigns following a fatal case in the Puno region due to immunization gaps.

  5. [HEALTH] 2 sources
    Bolivia and Chile launch border vaccination campaign against measles

    Bolivia and Chile are conducting a regional vaccination campaign from September 17–29 to prevent measles outbreaks and strengthen health surveillance in Andean border regions.

  6. [HEALTH] 8 sources
    Mexico reports 19,620 measles cases and 49 deaths

    Mexico reports 19,620 measles cases and 49 deaths since February 2025, with Jalisco leading in infections and Chihuahua reporting the most fatalities.

  7. [HEALTH] 3 sources
    Bolivia and Peru launch binational vaccination campaign

    Bolivia and Peru have launched a binational vaccination campaign in the border region of Carabuco to prevent measles and diphtheria outbreaks among high-risk populations.

  8. [HEALTH] 7 sources
    Health authorities respond to measles risks in Bolivia and Peru

    Health officials in Bolivia and Peru are responding to measles risks, with La Paz activating contingency plans for university-linked cases and Puno aiming to increase vaccination coverage to 95%.

  9. [HEALTH] 4 sources
    Measles cases rise in Bolivia and Colombia amid imported outbreaks

    Health authorities in Bolivia and Colombia are monitoring measles outbreaks linked to imported cases from Peru and other regions, emphasizing the importance of vaccination and epidemiological surveillance.

  10. [HEALTH] 15 sources
    Measles outbreak in Xalapa hospital reports 16 cases and two deaths

    A measles outbreak at the Centro Estatal de Cancerología in Xalapa, Veracruz, has resulted in 16 confirmed cases and two deaths, prompting a federal medical brigade to reinforce vaccination and control efforts.

  11. [HEALTH] 15 sources
    United States measles cases reach highest annual level since 1991

    U.S. measles cases have reached their highest annual level since 1991, amid declining vaccination rates and a political dispute between Pennsylvania officials and the HHS over the classification of recent child

  12. [HEALTH] 9 sources
    Tamaulipas reports zero measles cases in 2026

    Tamaulipas remains the only Mexican state with zero measles cases in 2026. Health officials are strengthening school vaccinations and preparing for upcoming influenza and COVID-19 campaigns.

  13. [HEALTH] 8 sources
    United States measles cases reach 30-year high amid political dispute

    The U.S. is facing a major measles surge with 2,903 cases in 2026, the highest in decades. Political tension has emerged following two deaths in Pennsylvania and requests to alter official CDC death counts.

  14. [HEALTH] 5 sources
    Health concerns rise in Yucatán Peninsula with snake bites and measles

    Yucatán reports a 47.9% increase in snake bites in 2026, while Quintana Roo faces an active measles outbreak with 11 new pediatric cases reported in one week.

  15. [HEALTH] 3 sources
    Mexican health authorities urge measles vaccinations before school year

    Health officials in Jalisco and Michoacán, Mexico, are calling for complete childhood vaccinations, specifically against measles, ahead of the 2026-2027 school year to prevent outbreaks in classrooms.

  16. [HEALTH] 5 sources
    Peru reports over 1,780 measles cases nationwide

    Peru reports over 1,780 measles cases, with the majority concentrated in Puno and Arequipa. Health authorities have issued epidemiological alerts and expanded vaccination campaigns to combat the spread.

  17. [HEALTH] 9 sources
    Measles and syphilis outbreaks trigger health alerts in Latin America and Spain

    Health authorities in Guatemala, Peru, and Argentina are managing outbreaks of measles and syphilis, while Spain closes a measles cluster in Tenerife amid regional calls for increased vaccination.

  18. [HEALTH] 4 sources
    Tucumán health officials reinforce measles prevention measures

    Tucumán health officials are reinforcing vaccination strategies and surveillance following a PAHO alert regarding rising measles cases in the Americas, specifically in Guatemala, Mexico, the US, and Peru.

  19. [HEALTH] 5 sources
    Measles cases surge across the Americas as PAHO issues health alert

    Measles cases in the Americas have reached their highest level in 22 years, with 47,459 confirmed cases reported by July 2026. Mexico, Guatemala, and the US are the most affected countries.

  20. [HEALTH] 7 sources
    Mexico measles outbreak 2026 kills 45, 12,460 cases reported

    Mexico's 2026 measles outbreak has caused 45 deaths and 12,460 confirmed cases (188% rise over 2025); Campeche reports six new imported cases among Guatemalan workers, total 16.

  21. [HEALTH] 6 sources
    Measles cases surge in Peru's Arequipa region and Mexico's Yucatán peninsula

    Measles cases rose sharply in Peru's Arequipa region and increased 3% in Mexico's Yucatán peninsula, prompting intensified vaccination efforts.

  22. [HEALTH] 3 sources
    Guatemala confronts measles resurgence as vaccination drive cuts cases by 80%

    Guatemala's measles outbreak risk 4.7 million, 28 deaths; a vaccination drive of 1.4 million doses has cut cases by about 80 %.

  23. [HEALTH] 2 sources
    Ecuador conducts measles vaccination sweep in Cuenca neighborhoods

    Ecuador’s health ministry surveyed Cuenca after a suspected measles case, sending mobile teams to 263 homes and administering 31 free vaccine doses to complete immunizations.

  24. [HEALTH] 3 sources
    Measles cases rise in Mexico and Ecuador prompt health alerts

    Mexico's Querétaro reports 45 measles cases in 2026, while Ecuador's Cuenca launches surveillance after a suspected case, prompting health alerts in both nations.

  25. [HEALTH] 2 sources
    El Salvador and Guatemala measles outbreaks prompt vaccination drives

    El Salvador confirmed 47 imported measles cases; Guatemala reported over 27 000 cases and 26 deaths, prompting intensified vaccination campaigns in both countries.

  26. [HEALTH] 6 sources
    Measles outbreak in Mexico and Guatemala tops 27,000 cases, 44 deaths

    Mexico reports 18,768 measles cases and 44 deaths; Guatemala 27,145 cases and 26 deaths; the US sees 2,170 cases, the highest in 35 years, amid falling vaccination rates.

  27. [HEALTH] 2 sources
    El Salvador reports imported measles cases as Chile ramps up vaccination outreach

    El Salvador confirmed 27+ imported measles cases, while Chile started a nationwide outreach to vaccinate over 140 000 children amid rising regional outbreaks.

  28. [HEALTH] 2 sources
    Measles vaccination campaigns intensify in Ecuador and Guatemala

    Ecuador and Guatemala ramp up measles vaccination amid rising cases, with Ecuador deploying mobile brigades and Guatemala reporting nearly 6,000 infections among IGSS members.

  29. [HEALTH] 6 sources
    Measles Cases Surge in Japan and Latin America as Honduras Ends Travel Vaccine Requirement

    Measles cases rise in Japan, Peru and El Salvador, while Honduras lifts the travel vaccination proof requirement.

  30. [HEALTH] 3 sources
    Measles cases fall in Michoacán and Edomex as Mexico steps up vaccination

    Mexico's State of Mexico logged 342 measles cases, ranking sixth nationally, while Michoacán reported no new cases since May 29 after vaccinating 1.46 million people.

  31. [HEALTH] 3 sources
    Yucatán reports sharp rise in measles cases and dog‑bite injuries in 2026

    Yucatán records 38 measles cases in 2026, up sharply from two a year earlier, and 2,215 dog‑bite injuries, reflecting rising health challenges tied to low vaccination and irresponsible pet ownership.

  32. [HEALTH] 2 sources
    Peruvian Government Allocates 4 Million Soles to Combat Measles Outbreak

    Peru's health ministry earmarks 4 million soles for regional measles response as a third university case triggers contact tracing, campus vaccinations and active surveillance.

  33. [HEALTH] 5 sources
    Mexico measles outbreak reaches 18,157 cases and 41 deaths

    Mexico reports 18,157 measles cases and 41 deaths, with Jalisco most affected; health authorities urge nationwide vaccination, while Peru advises travelers to get vaccinated.

  34. [HEALTH] 2 sources
    Chile health ministry urges measles vaccination for children before overseas travel

    Chile’s health ministry urged parents to ensure children have two measles vaccine doses before traveling abroad, citing regional outbreaks and gaps in booster coverage among 95,000 children.

  35. [HEALTH] 2 sources
    Chile boosts measles vigilance as vaccination coverage lags in Magallanes

    Chile warns of measles importation risk while the Magallanes region trails nationally with only 68.5% vaccination coverage for respiratory diseases.

  36. [HEALTH] 2 sources
    Measles cases surge across Latin America, health officials urge vaccination

    Over 20,000 measles cases have been confirmed in Latin America in 2026, prompting WHO and PAHO to urge vaccination and heightened surveillance, especially in Mexico and Guatemala.

  37. [HEALTH] 7 sources
    Arequipa health officials report up to 30 suspected measles cases

    Arequipa, Peru reports 20‑30 suspected measles cases from 153 clinics; rapid regional lab testing now provides results in 2‑4 hours.

  38. [HEALTH] 3 sources
    Peru declares measles emergency, prompting heightened surveillance in northern Chile

    Peru's measles emergency and rising pertussis cases trigger a 90‑day health alert and boost vaccination drives, while Chile ramps up surveillance in its northern border regions.

  39. [HEALTH] 11 sources
    Peru declares 90‑day health emergency amid measles surge

    Peru orders a 90‑day emergency to curb a growing measles outbreak across 14 regions, intensifying vaccination.

  40. [HEALTH] 2 sources
    Cusco school delegation returned from Bolivia, placed under 21‑day quarantine over measles risk

    A 147‑person Cusco school group stranded in Bolivia returned home and begins a 21‑day measles quarantine.

  41. [HEALTH] 66 sources
    El Salvador accelerates measles vaccination; Puno reports first measles case

    El Salvador expands measles vaccination with 11 imported cases; Peru's Puno reports first case and boosts surveillance.

Sources

24sata.hr · abriendobrecha.tv · aguasdigital.com · ahoradigital.net · akeza.net · altavoz.pe · am1080.com.ar · aragondigital · atlanticohoy.com · barbados Today · ca.sports.yahoo.com · calibre800.com · cambiodemichoacan · canal44.com · canaln.pe · capital.pe · cntamaulipas.mx · colombia.com · comunicaciontucuman.gob.ar · concierto.cl · csca.aha.cam.ac.uk · cuarto.com.ar · cubadebate · dailymeezan.com · diario.mx · diarioavanzada.com.mx · diariocorreo · diariocorreo.pe · diariodechimbote.com · diariodelsur.com.co · diarioelsolcusco.pe · diarioestrategia.cl · diariolaregion.com · diariolavozdelchaco.com · diariolosandes.com.ec · diariopopular · diariosanrafael.com.ar · economia.economia.rai.it · eju.tv · El Nacional · el-periodico.com.ar · elbuho.pe · elciudadano.com · elcomercio · eldiariodechihuahua.mx · eldiariodehoy.com · elfinanciero.com.mx · elheraldodesaltillo.mx

This summary has been updated 24 times: see revision history