Shigellosis (Bacillary Dysentery): Causes, Transmission and Symptoms

Shigellosis (Bacillary Dysentery): Causes, Transmission and Symptoms

Context

A recent increase in cases of shigellosis (bacillary dysentery) in Keralam has drawn attention to this highly infectious bacterial disease and its public health implications.

About Shigellosis (Bacillary Dysentery)

  1. Shigellosis is a highly contagious diarrhoeal disease caused by Shigella
  1. It is one of the leading bacterial causes of diarrhoea worldwide.
  2. Humans are the only natural reservoir of Shigella.
  3. Although it can affect all age groups, children under five years are particularly vulnerable.
  4. Severe disease is more common among young children, older adults, malnourished individuals, and people with weakened immunity.

Transmission

  1. The disease spreads mainly through the faecal-oral route.
  2. It can spread through direct contact with infected persons, contaminated food or water, contact with infected faecal matter, and certain forms of close personal or sexual contact.

Symptoms

  1. The main symptom is diarrhoea, which may contain blood or mucus and can persist for several days.
  2. Other symptoms include abdominal cramps, fever, vomiting, and a frequent urge to pass stools.