The territory of an old burial ground for animal refuse that hasn't been used for over 50 years is meant for house building. But soil investigation showed the presense of viable spores of a causative agent causing a very dangerous disease. What microorganism might have been preserved in soil for such a long period of time?

Answer options

1. Mycobacterium bovis
2. Bacillus anthracis
3. Yersinia pestis
4. Brucella abortus
5. Francisella tularensis

Explanation

Anthrax is an infection caused by the bacterium Bacillus anthracis. Bacillus anthracis also causes anthrax meningitis. Characterized by an enlarged cherry-red spleen on the cut surface, edema of soft meninges of fornix with serous-hemorrhagic inflammation. The bacterium normally rests in spore form in the soil and can survive for decades in this state.Keywords: found buried in soil over years.