
Urgent Warning: Measles and New World Screwworms Threaten Public Health in the Americas
2025-09-22
Author: John Tan
A Surge of Measles Cases Alarms Authorities
In a shocking update, the Pan American Health Organization (PAHO) has reported a staggering 11,313 measles cases across the Americas this year, resulting in 23 fatalities. This alarming statistic marks a 31-fold increase from the previous year, where only 358 cases had been logged by mid-September.
Canada, Mexico, and the U.S. Bear the Brunt
Most cases (96%) are concentrated in Canada with 4,849 cases (1 death), Mexico at 4,553 cases (19 deaths), and the United States reporting 1,454 cases (3 deaths). Further outbreaks have been noted in several other countries including Bolivia (320), Brazil (28), Argentina (35), Belize (34), Paraguay (35), Peru (4), and Costa Rica (1).
The Vaccination Crisis: Majority Unprotected
A striking 71% of the confirmed cases were in individuals who had not been vaccinated, while the vaccination status of an additional 18% remains unknown, according to PAHO. Children under one year old are being particularly affected, highlighting a critical area of concern for public health.
Local Outbreaks: Utah and Israel Report New Cases
Utah has reported its first measles case of the year in an unvaccinated child, marking its total cases for the year at 34. Meanwhile, Israel's ongoing outbreak has seen another child death, bringing the toll to three, and currently, 24 individuals—eight of whom are children—are hospitalized in intensive care units.
A New Threat: New World Screwworm Detected Near the U.S. Border
In a separate public health concern, Mexico confirmed a New World screwworm (NWS) infestation in a cow just 70 miles from the U.S.-Mexico border. This flesh-eating parasitic infection poses a serious risk to American livestock. The U.S. Department of Agriculture (USDA) has labeled this detection the most northerly during the current outbreak.
Protecting Livestock: U.S. Takes Swift Action
In response to the threat, U.S. ports have closed imports of cattle, bison, and horses from Mexico. The USDA is implementing a robust five-pronged action plan to safeguard American livestock, with over 8,000 traps monitored in Texas, Arizona, and New Mexico.
Investing in Prevention: $100 Million Strategy
To enhance disease prevention efforts, the USDA has earmarked $100 million for sterile fly production and is developing advanced traps and therapeutics. This includes updates to the national disease-response registry and training for federal, state, and tribal partners.
As these health threats unfold, vigilance and proactive measures are critical to safeguarding public health and livestock.