The anaerobe Clostridium difficule is controlled in low numbers in the large intestine by the resident microbiota. After a course of antibiotics it may multiple and cause disease. This is called
a. Parasitic infection
b. Mutualistic infection
c. Exogenous infection
d. Opportunistic infection
Ans: d. Opportunistic infection
You might also like to view...
The form of energy that is available to living organisms is in the form of
A) sunlight. B) radiation. C) chemical bonds. D) nuclear energy. E) heat.
Tetanus antitoxin is
A. antibody against the bacteria. B. inactivated toxin. C. inactivated bacteria. D. antibody against the toxin
The terms proto-oncogene and oncogene may give the misleading impression that these are "genes for cancer" that are waiting to be turned on
What are these genes, in terms of normal function, and what name might have been given to them to reflect this function rather than their role in cancer?
The main route for transmission of HIV in most parts of the world is through
A. intravenous drug use. B. homosexual sex. C. blood products. D. heterosexual sex. E. blood transfusion.