Negros Occidental records 59% spike in leptospirosis cases

By Dolly Yasa

BACOLOD CITY — Health authorities are raising the alarm over a surge in leptospirosis cases across the province, with the Provincial Health Office confirming 137 infections from Jan. 1 to Sept. 20, 2025, a 59% jump from the 86 cases reported in the same period last year, and eight fatalities recorded.

Provincial Health Officer Dr. Girlie Pinongan warned on Thursday that the risk of infection rises significantly during floods, when contaminated water increases exposure.

“Wearing protective footwear is critical to avoid skin contact with contaminated water,” Pinongan stressed, adding that post-exposure prophylaxis is advised for those who cannot avoid wading through floodwaters.

Leptospirosis, caused by bacteria spread through rat urine, can lead to high fever, muscle pain and vomiting, and in severe cases kidney and liver damage.

Health officials note that cases typically increase during the rainy season when flooding and poor sanitation heighten transmission risks, and early treatment reduces complications and deaths.

To counter the spike, the Provincial Health Office has intensified its public information campaign, coordinated with local government units to provide protective gear and expanded access to immediate medical care in flood-prone barangays.

Authorities are urging residents to practice proper sanitation, eliminate rodent breeding grounds and seek early medical consultation if symptoms appear.