Why are Nipah and Shigella becoming a fresh public health concern in Kerala?

Kerala’s early monsoon period is once again drawing attention to two serious infectious diseases — Shigellosis and Nipah virus — because both have a history of outbreaks in the state and can spread quickly under certain environmental conditions. Shigellosis is a highly contagious bacterial infection that affects the digestive system and spreads mainly through contaminated water, food, poor hygiene practices, and person-to-person transmission (often described through the “five Fs”: food, faeces, fingers, flies and contaminated surfaces). It can cause diarrhoea, fever, stomach cramps, and dehydration, with young children and older adults at higher risk. Nipah virus infection is more severe and can lead to respiratory illness and inflammation of the brain (encephalitis). It is linked to transmission from fruit bats, infected animals, or contaminated food sources. Kerala remains especially alert because previous outbreaks in Kozhikode resulted in significant illness and fatalities, making rapid surveillance and early detection a public health priority. Health experts typically advise maintaining good hand hygiene, consuming safe food and water, avoiding contact with sick animals, and following official public health advisories. Do you think seasonal disease preparedness and public awareness campaigns should be strengthened further during Kerala’s monsoon months?

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