The major etiologic agent of bacterial endocarditis in the United States is:

a. E. faecalis.
b. S. pneumoniae.
c. S. pyogenes.
d. Viridans streptococci.


D
Viridans streptococci is the etiologic agent in the majority of cases of bacterial endocarditis in the United States.

Biology & Microbiology

You might also like to view...

Which of the following is known to activate the genital herpes virus?

A. Stress B. Sex hormones C. Sunlight D. All of the choices are correct.

Biology & Microbiology

The five-toed limb of stem reptiles was modified into a limb suitable for digging. This is an example of ____

a. convergent evolution b. morphological divergence c. analogous evolution d. morphological convergence e. distal modification

Biology & Microbiology

The __________ can be considered a sorting, processing and packaging center

a. centriole b. centrosome c. Golgi complex d. vacuole e. cytoskeleton

Biology & Microbiology

What are the three lines of evidence that challenge fundamental aspects of many set-point theories of body-weight regulation?

What will be an ideal response?

Biology & Microbiology