PAHO: Strengthening El Niño raises growing health dangers throughout the Americas

Washington, D.C., September 18, 2026 (PAHO) — El Niño continues to reinforce and might have considerable public health effects throughout the Americas in the coming months, according to the Pan American Health Organization’s (PAHO) very first local scenario report on the phenomenon.

The U.S. National Oceanic and Atmospheric Administration (NOAA) approximates there is a higher than 90% opportunity of an extremely strong El Niño throughout the Northern Hemisphere fall and winter season of 2026– 27.

PAHO reports that effects are currently being seen in various parts of the area. Numerous nations are experiencing dry spell, food insecurity, wildfires, and flooding amidst the enhancing El Niño, although not all of these occasions have actually been straight credited to the phenomenon. To date, 8 nations or areas have actually released main emergency situation statements or informs associated to hazards connected with El Niño.

“El Niño is not simply an environment phenomenon. It can impact individuals’s health in numerous methods, from food insecurity and vector-borne and water-borne illness to disturbances in health services,” stated Dr. Ciro Ugarte, Director of PAHO’s Department of Health Emergencies. “With a higher than 90% opportunity of a really strong occasion, this is a danger nations must take seriously and get ready for now.”

The report highlights that more than 5.2 million individuals throughout the area are impacted, exposed to run the risk of, or experiencing severe food insecurity, while numerous nations are currently reporting health effects connected with severe weather condition occasions. Based upon readily available info, PAHO’s tracking determined 8 nations or areas experiencing active dry spell or water lacks, 6 dealing with wildfires with health effects or dangers, and 5 reporting damage from heavy rains or flooding.

In Central America, among the main issues is the Dry Corridor, especially in Honduras, Guatemala, and El Salvador, where dry spell is impacting water accessibility, farming production, and food security. In Guatemala, almost 3 million individuals deal with crucial levels of food insecurity, while Honduras reports in between 1.8 and 2.2 million individuals impacted by intense food insecurity.

In the Andean area, Colombia deals with a complicated scenario marked by wildfires, heavy rains, and an active dengue break out, together with threats connected to malaria and yellow fever. Peru is experiencing among the most serious scenarios in the area, with heavy rains, flooding, and landslides triggering a minimum of 70 deaths in between December 2025 and August 2026 and impacting more than 600 health centers.

Brazil presently provides a few of the most considerable ecological indication, consisting of decreasing water levels throughout the Amazon Basin and intensifying air quality connected to wildfires. According to information pointed out by PAHO, 630 towns have actually taped great particle matter levels above World Health Organization (WHO) standard levels. Since the reporting duration, no direct connection with particular health results had actually been developed.

In the Caribbean, Jamaica, Puerto Rico, and Trinidad and Tobago are reporting dry spell conditions and threats connected with water deficiency, while nations in the Southern Cone are keeping readiness steps in anticipation of increased rains, flooding, and other severe occasions in the months ahead.

The report determines a variety of health threats, consisting of the direct results of severe heat, vector-borne and water-borne illness, weakening air quality, and disturbances to important health services. It likewise alerts that health centers stay susceptible to facilities damage, disturbances in water and power products, effect on supply chains and vaccination programs, and lowered access to healthcare.

Previous El Niño episodes have actually likewise accompanied significant public health emergency situations, consisting of the reemergence of cholera in the 1990s, the Zika and chikungunya upsurges in 2015– 2016, and record dengue transmission in 2023 and 2024.

In reaction, PAHO is supporting readiness and reaction efforts throughout the area, consisting of efforts to enhance the strength of health services, enhance illness monitoring, improve water security, and assistance connection of look after susceptible neighborhoods.

PAHO is advising nations to reinforce security systems and early caution systems, secure the connection of vital health services, and guarantee access to safe water, vaccination, medications, and healthcare for the most susceptible populations. The Organization likewise requires the evaluation and upgrading of healthcare facility and health network contingency prepares to lower the possible health effects of what might turn into one of the greatest El Niño occasions in the last few years.