Which Factor May Prevent Most People from Developing More Than

Multiple Choice

Which factor may prevent most people from developing more than minor skin blemishes when they have a staph infection?

A) Their immune systems are preventing the infection from spreading.
B) Helpful bacteria on their skin keep staph in check.
C) Their skin is a physical barrier that keeps out the bacteria.
D) They are practicing good hygiene,including frequent hand washing.
E) all of these