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Published on: May 31, 2019
An outbreak of human anthrax in Mysore (India)
R L Ichhpujani1, V Rajagopal, D Bhattacharya
1National Institute of Communicable Diseases, Delhi.
Abstract:
Anthrax is a zoonotic disease caused by Bacillus anthracis. Intestinal anthrax though a rare entity mostly ends with fatal outcome. Very few cases of intestinal anthrax are reported. Present outbreak of intestinal anthrax is unique in itself that four cases succumbed to the illness within a span of 48-72 hours in a small hamlet of Mysore district of Karnataka, after consuming diseased deer meat. Confirmation of the diagnosis was carried out at NICD, Delhi by bacteriological culture isolation, biochemical tests, animal pathogenicity and polymerase chain reaction (PCR). This outbreak clearly indicates surveillance of anthrax in animals in endemic areas is an essential part in the control of the disease with intersectoral coordination between the departments of health, animal husbandary, agriculture and forest.
Insights
A rare outbreak of intestinal anthrax, caused by Bacillus anthracis, resulted in four deaths within 72 hours after consuming diseased deer meat. This highlights the critical need for animal surveillance and intersectoral coordination to control anthrax.
Area of Science:
- Zoonotic diseases
- Infectious disease epidemiology
- Microbiology
Background:
- Anthrax, a zoonotic disease caused by Bacillus anthracis, is rare, particularly the intestinal form, which often has a fatal outcome.
- A unique and fatal outbreak of intestinal anthrax occurred in a small hamlet in Mysore, Karnataka.
- Four individuals died within 48-72 hours after consuming meat from a diseased deer.
Purpose of the Study:
- To report and analyze a unique outbreak of intestinal anthrax.
- To emphasize the diagnostic confirmation methods for Bacillus anthracis.
- To highlight the importance of surveillance and intersectoral coordination in disease control.
Main Methods:
- Diagnosis was confirmed by bacteriological culture isolation.
- Biochemical tests were performed for identification.
- Animal pathogenicity tests and Polymerase Chain Reaction (PCR) were utilized for confirmation.
Main Results:
- Four cases of intestinal anthrax were confirmed.
- The outbreak was linked to the consumption of diseased deer meat.
- Rapid fatality occurred within 48-72 hours in the affected individuals.
Conclusions:
- Intestinal anthrax, though rare, has a high fatality rate.
- Effective control requires robust surveillance of anthrax in animals in endemic areas.
- Intersectoral collaboration between health, animal husbandry, agriculture, and forest departments is essential for anthrax prevention and control.
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