Key Facts

The Kerala Health Department intensified public health surveillance, potable water chlorination, and food safety inspections following a cluster of Shigella bacterial infections reported in Kozhikode and Malappuram districts. Health teams were deployed to trace contamination sources, inspect commercial kitchens, and test water samples from public wells and packaged beverage suppliers. Shigella is a highly virulent bacterium that triggers shigellosis (bacillary dysentery), characterized by acute bloody diarrhoea, high fever, abdominal cramps, and severe dehydration, which can be life-threatening in young children, the elderly, and immunocompromised patients.

GK Context

Shigella is an enteric Gram-negative, facultatively anaerobic bacterium belonging to the Enterobacteriaceae family, primarily transmitted via the faecal-oral route through contaminated drinking water, undercooked food, or direct person-to-person contact. Unlike cholera, which requires a large infectious dose, Shigella has an extremely low infectious dose (as few as 10 to 100 bacterial cells can cause disease), making community outbreaks rapid in areas with compromised sanitation. Treatment relies on oral rehydration therapy (ORS), fluid electrolyte management, and targeted antibiotic therapy informed by antimicrobial susceptibility testing due to widespread multidrug resistance.