An Introduction to Microbiology and Human Disease 527
- Ms. D has had second thoughts about her eyebrow
ring, so she has taken it out and now wants the hole
to close. She comes to the clinic on campus because
the pierced site is not healing, has become inflamed,
red, and painful. Ms. D claims that she keeps the
site very clean by applying hydrogen peroxide sev-
eral times a day. What do you tell her to do?
7. West Nile virus encephalitis was new to North
America in 1999. Less than a year later, public
health officials could say that most infections were
asymptomatic or mild, and only a very small per-
centage were serious or fatal. How do you think
they discovered this?