Rat Fever Threat Rises Across Sri Lanka as Maha Season and Monsoon Rains Begin
November 12, Colombo (LNW): Sri Lanka is facing a heightened risk of Leptospirosis, commonly known as rat fever, as the Maha cultivation season gets underway amid continuing monsoon rainfall, prompting health authorities to call for increased vigilance among farmers and the wider public.
Nearly 7,000 cases have been reported across the country so far this year, raising concerns that the number of infections could climb further as more people enter paddy fields and work in muddy or flood-affected environments.
The Epidemiology Unit and the Health Promotion Bureau have jointly issued a special public health advisory, warning that the combination of agricultural activity and wet weather creates favourable conditions for the spread of the disease.
Health professionals estimate that Leptospirosis claims around 300 lives in Sri Lanka each year, making early detection and preventive action particularly important during periods of heavy rainfall.
Ratnapura, Kegalle, Galle and Matara are among the districts that have recorded the highest numbers of infections so far this year. The situation has raised particular concern for communities whose livelihoods involve regular contact with paddy fields, irrigation channels, stagnant water and wet soil.
Leptospirosis is a bacterial infection transmitted from animals to humans. Rats are a major source of infection, although other domestic and wild animals can also carry the bacteria. Infected animals release the bacteria through their urine, contaminating water and soil.
People can become infected when contaminated water or mud comes into contact with cuts, abrasions or other breaks in the skin. Exposure is therefore especially hazardous for individuals working in waterlogged fields or walking through contaminated areas without adequate protection.
With agricultural activities expected to intensify during the Maha season, health authorities are urging farmers and other outdoor workers to take preventive measures before entering potentially contaminated environments.
Those planning to engage in paddy cultivation or work involving prolonged exposure to mud are advised to consult a medical professional about obtaining preventive medication. Such medication should be taken in accordance with medical guidance rather than through self-prescription.
The use of protective equipment is also strongly recommended. Rubber boots and suitable gloves can reduce direct contact with contaminated soil and water. Anyone with cuts or wounds should clean the affected areas and cover them with waterproof dressings before undertaking work in muddy or waterlogged conditions.
Medical professionals have also cautioned that the early symptoms of Leptospirosis can resemble those of other common illnesses, including dengue and influenza. This similarity can make it difficult to identify the infection without proper medical assessment.
Fever, severe headache, muscle pain and redness of the eyes are among the symptoms that should prompt immediate medical attention, particularly in individuals who have recently worked in paddy fields or been exposed to floodwater and muddy environments.
People experiencing such symptoms are advised not to rely on self-medication or delay seeking treatment. A timely medical assessment is essential, as untreated Leptospirosis can lead to serious complications.
Health authorities stress that public awareness, personal protection and early treatment remain critical to reducing infections and preventing avoidable deaths, particularly during the current period of increased agricultural and weather-related exposure.
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