Leptospirosis and Tropical Disease Surge Following Flooding

Recent flooding events are contributing to a rise in tropical diseases, prompting health alerts across multiple regions. Authorities are reporting increases in leptospirosis, dengue fever and gastrointestinal viruses, raising concerns for public health. While floodwaters are receding in some areas, the aftermath presents a new set of health challenges.

Leptospirosis Outbreak: A Growing Concern

Stagnant floodwaters create ideal breeding grounds for disease-carrying vectors, particularly increasing the risk of leptospirosis. As of 2026, 146 cases of leptospirosis have been reported nationally. This alert is heightened by a concerning situation on the border with Peru, where the Tumbes region has confirmed four deaths and over 850 cases of the disease.

Communities like Babahoyo, in the province of Los Ríos, are particularly vulnerable. Residents have been forced to wade through contaminated waters, leading to skin conditions and infections. “My feet were already rotten. We stepped in these waters and this water causes itching,” reported Lucía Maldonado, a resident of Babahoyo.

Healthcare facilities, both public and private, in Babahoyo are experiencing increased patient volumes, with children and the elderly presenting with various symptoms and skin ailments. Dr. Julio Brito, a physician in Babahoyo, explained, “The garbage could not be collected during the time we were flooded and there was a proliferation of flies and rodents. All of this causes diseases.”

Dengue Fever Cases Surge

Guayaquil is also experiencing a significant increase in dengue fever cases. Between January and March 17, 2026, 127 patients have been registered, a 408% increase compared to the same period in 2025. Nationally, a total of 4,565 dengue cases have been reported this year.

Gastrointestinal Illnesses on the Rise

Gastrointestinal diseases are also being reported in Durán, an area affected by flooding and limited access to clean drinking water. Andrés Díaz, deputy director of Health of the Municipality of Guayaquil, warned, “If there is poor water management and poor hand hygiene, gastrointestinal diseases can occur.”

Prevention and Recommendations

Health authorities and medical professionals are urging the public to take preventative measures. These include avoiding contact with contaminated water, refraining from self-medication, and seeking medical attention promptly at the first sign of symptoms. Leptospirosis, as noted by the Centers for Disease Control and Prevention, is a bacterial disease that can lead to serious complications like kidney or liver failure, meningitis, and breathing difficulties.

Understanding Leptospirosis

Leptospirosis is a bacterial disease spread through the urine of infected animals, including rats, cats, dogs, and livestock. The bacteria thrive in water contaminated with animal urine, making flooding a significant risk factor. Research highlights the importance of understanding risk factors associated with leptospirosis following flooding to develop effective prevention and control strategies.