Where Does The Bacteria Yersinia Pestis Originate From And How Is It Different From A Virus?

Posted on Sat, 21 Jul 2018

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sat, 21 Jul 2018 Answered on

Mon, 21 Feb 2022 Last reviewed on

Question : Where the bacteria (yersinia pestis) originated from. & my last question, i like to know the difference between Bacteria & Virus.

Answered by Dr. salah saad shoman (-3 hours later)

Brief Answer:
Viruses are always harmful

Detailed Answer:

Hi,

The plague pathogen was diverged from the pseudotuberculous microbe Yersinia pseudotuberculosis in a mountain called steppe landscapes found in Central Asia 22000-15000 years ago. Speciation occurred in a type of fleas’ parasitic system.
However, bacteria consists from one cell and can survive in a host (human or other hosts) or can survive without a host. Bacteria could be beneficial or harmful. while viruses are a cellular (no cell structure), survive only in host system and are always harmful.

I hope I answered your question, if you don’t have any other clarifications then please close the discussion.

Above answer was peer-reviewed by : Dr. Remy Koshy