Peru declares measles emergency, prompting heightened surveillance in northern Chile

Peru's health ministry has declared a 90‑day emergency after confirming more than 40 measles cases and a surge in pertussis infections, which have surpassed 700 cases and caused over 10 deaths. The decree covers Lima, Callao, Tacna and other regions, urging the public to complete vaccination schedules, especially for children aged 12‑36 months and for adults born between 1971 and 1981 who travel to Peru. Pediatrician Nancy Olivares warned, “The return of measles and the sustained rise in whooping cough remind us that vaccination is not optional; it is our primary tool to prevent preventable diseases.”

In response, Chile’s health authorities have intensified epidemiological monitoring in the northern border regions of Arica y Parinacota, Tarapacá and Antofagasta. They are conducting active case searches, reinforcing vaccination campaigns for travelers, and maintaining alerts to prevent imported cases from triggering a local outbreak.

Both countries are emphasizing the importance of up‑to‑date immunization, especially ahead of large gatherings such as the 2026 FIFA World Cup, to curb cross‑border transmission of these vaccine‑preventable diseases.