Epidemiological investigations depend on being able to link a number of instances of an infection to ___________.

A) multiple people.
B) multiple locations.
C) a common source.
D) a common state in the US.


C) a common source.

Biology & Microbiology

You might also like to view...

Staphylococcus aureus produces ________, leading to fibrin clots that protect them from attack by host cells

A) collagenase B) coagulase C) lipase D) amylase

Biology & Microbiology

HIV-1 Group M is responsible for 95% of human infections. When is it estimated that HIV-1 Group M was transferred to humans?

A) 1980 B) 1960 C) 1930 D) 1995 E) 1900

Biology & Microbiology

Which of the following groups do not contain any species that are autotrophs?

A. Archaea B. Bacteria C. Plants D. Fungi E. Protista

Biology & Microbiology

The most important evidence that Darwin used to develop his theory of natural selection came from ____.

A. the Argentine pampas B. his boyhood neighborhood in England C. the Galápagos Islands D. Australia and New Zealand E. South America

Biology & Microbiology