Overview The Health department has issued an alert regarding Scrub Typhus in Kozhikode following the death of a woman from Ward 10 (Pavu Vayal) in Koyilandy municipality . This highlights the ongoing public health challenges posed by vector-borne diseases in the region. Key Developments Case Details: The deceased woman was undergoing treatment at the Government Medical College Hospital (MCH), Kozhikode . Her samples tested positive for Scrub Typhus postmortem. Preventive Measures: Health and municipal authorities have intensified preventive measures, including cleaning the surroundings of the deceased's residence and collecting samples from rats for testing. Disease Transmission: Scrub Typhus is caused by the bacterium Orientia tsutsugamushi and is transmitted to humans through the bites of infected chiggers , the larval stage of mites. It does not spread from person to person. Disease Etiology and Symptoms Transmission and Vectors Humans typically contract Scrub Typhus when bitten by chiggers present on animals such as rats, squirrels, rabbits, and mongooses. The increasing encroachment of mites into human habitats is leading to cases even among people without direct links to forests or agricultural activities. Symptoms and Diagnosis After a chigger bite, symptoms usually appear within 10 to 12 days . These include: High fever Headache Muscle pain Redness of the eyes The bite site may initially appear as a small red raised spot, later developing into a black scab ( eschar ). However, in some cases, Scrub Typhus may occur without visible lesions. Early diagnosis and proper treatment are crucial to avoid complications. Preventive Measures and Public Health Advice The Health department has urged the public to take the following precautions: Carry out rodent control measures . Ensure environmental sanitation by clearing overgrown bushes and grassy areas. When visiting grasslands or forested areas: Wear clothing that covers the arms and legs. Wear gloves and footwear. Apply mite repellents. After returning home: Take a bath. Wash and dry the clothes worn that day. UPSC Relevance This news is relevant to GS3 (Health) and GS3 (Environment) . Understanding the transmission, symptoms, and prevention of diseases like Scrub Typhus is crucial for public health preparedness and environmental management. Important Facts Disease: Scrub Typhus Causative Agent: Orientia tsutsugamushi Vector: Chiggers (larval stage of mites) Symptoms: High fever, headache, muscle pain, eschar Location: Kozhikode, Kerala