Washington, D.C., 6 November 2026 (PAHO) – With Pope Leo XIV due to visit Argentina, Uruguay and Peru from 6 to 17 November, the Pan American Health Organization (PAHO) is encouraging travelers, pilgrims and people attending large religious gatherings to take precautions against measles.
The Americas are experiencing a resurgence of measles, with 57,666 confirmed cases and 81 deaths reported in 17 countries and territories between January and 31 October 2026 – 4.7 times the number recorded during the same period in 2025.
PAHO has published a guide with health recommendations for travelers and pilgrims, including advice on vaccination and measures to reduce the risk of infection and transmission during travel and mass gatherings.
Travelers are encouraged to read the guide and check that their measles vaccination is up to date before travelling.
