MANILA, Philippines — As heavy monsoon rains continue to trigger flooding in parts of the Philippines, the Department of Health (DOH) is warning Filipinos not to underestimate the health risks hidden in floodwaters, particularly the potentially deadly bacterial infection leptospirosis.
The warning comes as the Philippine Health Insurance Corporation (PhilHealth) rolls out a significantly expanded leptospirosis benefit package that can provide up to ₱411,000 in coverage for qualified patients whose condition becomes severe and requires intensive treatment.
The DOH’s latest reminder, reported by the Philippine Information Agency on August 19, comes amid continued heavy rains associated with the Southwest Monsoon, or Habagat, which has caused flooding in several areas of Luzon and the Visayas.
FLOODWATER CAN CARRY A DEADLY INFECTION
Leptospirosis is caused by bacteria commonly found in water or soil contaminated with the urine of infected animals, particularly rats.
People can become infected when contaminated floodwater enters the body through cuts, wounds or mucous membranes. The danger is especially high after floods, when residents may be forced to walk or work through contaminated water.
According to the DOH, symptoms can develop from two days to as long as four weeks after exposure. Warning signs include high fever, severe headache, chills, muscle pain and red eyes. In serious cases, the infection can damage vital organs, including the kidneys, liver, lungs and heart.
The Philippine Council for Health Research and Development has likewise warned that flooding can increase the risk of waterborne diseases, including leptospirosis, while stagnant water can contribute to the spread of mosquito-borne illnesses such as dengue.
DOH: DON’T WAIT FOR SYMPTOMS TO GET WORSE
Health authorities are urging people who have been exposed to floodwaters to seek medical advice promptly.
Those who have waded through floodwater — whether they have visible wounds or not — are advised to consult a doctor or visit a health center for proper assessment. Antibiotic prophylaxis, including doxycycline in appropriate circumstances, should only be taken under medical guidance and with a prescription.
People with existing cuts or open wounds should avoid floodwater altogether and keep wounds protected with waterproof coverings.
If exposure cannot be avoided, health authorities recommend using protective equipment such as boots and rain gear, followed by thorough washing of exposed skin with clean water and soap.
Self-medication is strongly discouraged. Doxycycline and other antibiotics should not be taken without medical advice.
PHILHEALTH COVERAGE NOW REACHES ₱411,000
The expanded PhilHealth benefit package took effect July 15 under PhilHealth Circular No. 2026-0008, dramatically increasing financial assistance for moderate-to-severe leptospirosis cases.
The new benefit rates include:
- ₱63,000 for moderate-to-severe leptospirosis requiring hospital care
- Up to ₱170,000 for cases requiring hemodialysis and vascular access
- Up to ₱230,000 for cases requiring peritoneal dialysis and PD solutions
- Up to ₱325,000 for cases requiring hemodialysis and hemoperfusion
- Up to ₱411,000 for cases requiring hemodialysis, ventilatory support and pulmonary rehabilitation
The increase is substantial compared with the previous maximum benefit of ₱21,450 for moderate-to-severe leptospirosis. Inquirer.net reported that patients previously continued to shoulder significant out-of-pocket costs despite earlier increases in reimbursement.
PhilHealth’s 2025 claims data also showed that some patients with moderate-to-severe leptospirosis could still face out-of-pocket expenses reaching as much as 90 percent of hospitalization costs, underscoring the financial impact of complicated infections.
LEPTOSPIROSIS CASES WERE ALREADY RISING
The warning comes against a backdrop of increasing leptospirosis cases.
In June, reports citing DOH data said the country had recorded 2,177 leptospirosis cases from January 4 to June 6, 2026, a 6-percent increase compared with the same period previously reported. Farmers accounted for many of the cases because of frequent exposure to potentially contaminated mud and water.
Recent reporting by ABS-CBN has also highlighted the concern that leptospirosis cases could increase following flooding, with health officials urging people exposed to floodwaters to seek early treatment rather than waiting for severe symptoms to appear.
The pattern is not new. Research published by the CDC’s Emerging Infectious Diseases journal noted that the Philippines commonly sees leptospirosis outbreaks in the weeks following monsoon flooding, illustrating why health authorities are emphasizing early prevention and treatment.
DENGUE IS ANOTHER RAINY-SEASON THREAT
Leptospirosis is not the only disease health officials are watching.
The DOH has historically grouped several major rainy-season threats under the acronym W.I.L.D. — Waterborne diseases, Influenza-like illnesses, Leptospirosis and Dengue. Standing water created by heavy rains can provide breeding grounds for mosquitoes that transmit dengue.
PhilHealth also has a separate enhanced dengue package. Its current published rates provide coverage of up to ₱19,500 for mild dengue and ₱47,000 for severe dengue, an increase from previous rates.
That distinction is important: the newly highlighted ₱411,000 maximum is for severe leptospirosis cases requiring complex interventions, not a blanket ₱411,000 benefit for all rainy-season illnesses.
THE WARNING BEHIND THE NUMBERS
The message from health authorities is straightforward: floodwater should not be treated as harmless water.
A person may feel perfectly healthy immediately after exposure and still develop symptoms days or weeks later. That delay can make people dismiss the connection between flooding and subsequent illness.
With monsoon rains continuing, health officials are urging Filipinos to avoid unnecessary contact with floodwater, protect wounds, practice proper hygiene after exposure and seek medical attention early when symptoms develop.
The expanded PhilHealth coverage may reduce the financial burden when serious illness occurs — but health authorities emphasize that prevention and early medical care remain the first line of defense.
And as floodwaters recede, the health threat may not disappear with them.
Leave a Reply