Philippines: Cholera outbreak in multiple regions, especially in Eastern Visayas through Aug. 13 /update 1

Event

Filipino health authorities have reported an additional 330 cases of cholera July 31-Aug. 13, bringing the total case count to more than 2,960 cases since Jan. 1. In 2022, the risk of cholera in the Philippines was 2.6 cases per 100,000 population compared to only 0.7 cases per 100,000 population reported over a similar period. The most at-risk region is Eastern Visayas, reporting 42.3 cholera cases per 100,000 population followed by Caraga Region 9.9 cholera cases per 100,000 population. This represents the complete data available as of Sept. 6.

Context

Cholera is transmitted directly through food or water contaminated with fecal material from an infected person. Most infected people develop no symptoms or only mild diarrhea. However, approximately one in 10 infected people develop severe cholera, which causes symptoms including profuse, watery diarrhea, vomiting, rapid heart rate, low blood pressure, muscle cramps, restlessness, or irritability. Symptoms typically appear 2-3 days after exposure but can develop up to 5 days after exposure. Individuals with severe cholera can develop acute renal failure, severe electrolyte imbalances, and coma. If left untreated, these can lead to shock and rapid death.

Advice

Consult a travel medicine provider before departure regarding cholera vaccination. Practice strict food and water precautions. Seek immediate medical attention if symptoms develop within a week of being in affected areas.