US Embassy Warns Cuba of Illnesses Linked to Infrastructure

The U.S. Embassy in Havana issued a health alert on Friday, September 4, 2026, warning of a significant increase in diarrheal illnesses across Cuba, linking the outbreak to the island's deteriorating water and electricity infrastructure. The advisory, which does not recommend against travel, urges travelers and residents to take precautions regarding food and water safety and to carry personal medical supplies due to local shortages. The embassy's alert states that the rise in intestinal illnesses is associated with the continuing degradation of Cuba's water and energy infrastructure, which affects water supply, food storage, and temperature control. Officials advised people to avoid tap water, be cautious with perishable foods that may have been inadequately refrigerated, and to pack essential medications such as paracetamol, ibuprofen, antibiotics, and oral rehydration solutions. The warning notes that these basic medical supplies are in short supply in Cuba's hospital and pharmacy network. The health advisory comes amid a prolonged energy crisis on the island.