Actually, the plague is a bacterial disease. It can be spread to humans and animals by infected fleas. Plague has three forms:
Yersina Pestis is a form of Bacteria.
Though some say it was a virus in the middle ages different from what we think today is pestis, because of its effectiveness in spreading from people to people. Charanten would not have been useful, if it really were a bacteria. They say it was more like ebola those times. And aswell in the middle ages the "black death" coloured the whole skin of the enire body, as a resault of the circulation system. In the bubonic plague, there were only a few black bubos.
Aome find out that those people, who are descendent of middle ages pestis survivors, inherited a protein mutation, that make tham to be resisten to AIDS.
That also stenght the virus theory.
However, a professor says based on her research, that it was a bacteria attacked by a virus, which made the bacteria so virulent.
The black death, or bubonic plague, was caused by a bacteria, thought to be Yersinia pestis.
The Bubonic Plague is not caused by a virus but rather a enterobacteria known as Yersinia pestis.
The bacteria that is believed to be the main cause of Black Death (bubonic plague, pneumonic plague and septicemic) is yersinia pestis.
Bacteria Virus
Smallpox was a virus.
Mumps is caused by a virus, specifically the mumps virus. It is not caused by bacteria or fungus.
Bacteria and virus
No. HIV is caused by a virus, not a bacteria.
virus
Pneumonia is an inflammation or infection of the lungs most commonly caused by a bacteria or virus. Pneumonia can also be caused by inhaling vomit or other foreign substances.
a bacteria. the bacteria that causes pneumonia is called pneumoniae.
Warts are caused by viruses, particularly human papillomavirus (HPV). They are not caused by bacteria.