Nine Shigella Cases Confirmed in Malappuram

Nine Shigella cases have been confirmed in Malappuram district, Kerala. The outbreak came to light after more than 100 people who attended a wedding in Elamkulam on October 31 reported symptoms.

Health measures and cases

The Elamkulam family health centre formed a special squad for house-to-house surveillance and infection awareness. Authorities are cleaning affected areas, including by super-chlorinating wells and houses. Suspected food outlets have been temporarily closed.

A four-year-old girl from Fifth Mile in Amarambalam panchayat tested positive after eating snacks from a shop. Restrictions were imposed on evening tea shops and street-food stalls in the area, with inspections set to cover all food establishments in the panchayat. The confirmed cases also include two people who ate mandi at a restaurant in Palunda, Nilambur. Two infected people are receiving treatment at taluk hospitals in Perinthalmanna and Nilambur.

Health officials advised people with diarrhoea or other symptoms to seek medical care and avoid self-medication. They recommended drinking boiled and cooled water, consuming clean food served hot, and using oral rehydration solution to prevent dehydration.

Important Facts for Exams

• Serogroup classification: Shigella species fall into four serogroups: A is S. dysenteriae, B S. flexneri, C S. boydii and D S. sonnei.
• Low infectious dose: Depending on the host’s health, fewer than 100 Shigella cells may be enough to cause infection.
• M-cell invasion: Shigella enters through M-cells in the small-intestinal lining and uses a type-III secretion system to deliver effector proteins into human cells.