Treatment of chlamydial infections involves ____________.
a. Erythromycin cream
b. Doxycycline creams
c. Surgical correction of eyelid deformities
d. All of the above

The bacterium that causes spotted fever rickettsiosis (RMSF) is more likely to infect a human ______________.

a. If an infected tick feeds for several hours

b. When an infected tick initially penetrates the skin

c. When contaminated tick feces dry and become airborne

d. If the human is exposed to rodent feces containing the bacterium

The most severe rickettsial illness is caused by __________.

a. Rickettsia typhi

b. Rickettsia rickettsii

c. Orientia tsutsugamushi

d. Ehrlichia chaffeensis

The smallest cellular microbes are __________.

a. Rickettsias

b. Mycoplasmas

c. Chlamydias

d. Both a and c

The most commonly reported sexually transmitted disease in the United States is caused ___________.

by the bacterium

a. Mycoplasma genitalium

b. Chlamydia trachomatis

c. Chlamydophila proctitis

d. Ureaplasma urealyticum

Suggest a hypothesis to explain why rickettsias are obligate parasites.

Describe the three developmental stages of the bacteria Ehrlichia and Anaplasma.

Describe the phases of untreated syphilis.

Discuss the prospects for the eradication of leptospirosis.