What animals generally serve as the source of Escherichia coli O157:H7 for human infection?

Tetanospasmin and botulinum toxins affect muscles by

a. blocking the action potential traveling from the CNS to the PNS.

b. allowing the bacteria to enter neurons.

c. blocking the relaxation or contraction of the muscles.

d. damaging the axon itself.

A patient who has just immigrated to the United States after serving in the Iraqi army is displaying a bruiselike rash, headache, and sensitivity to light. The doctor will immediately recommend administration of (NCLEX/HESI/TEAS)

a. ceftriaxone.

b. penicillin.

c. gentamycin.

d. rifampicin.

Which of the following can occur even if the infectious agent is killed by the time it enters the host?

a. Salmonellosis

b. Cholera

c. Giardiasis

d. Food poisoning

e. Mumps

How would an upper endoscopy help diagnose a Helicobacter pylori infection?

A father suspects his son has intestinal worms due to his complaint of an itchy bottom. What habit is most likely responsible for his infection? (NCLEX/HESI/TEAS)

a. Walking outside barefoot

b. Eating without first washing hands

c. Eating fruit that is not washed

d. Eating undercooked meat

e. Swimming in a nearby freshwater lake

Using the following list, construct a concept map or a chart connecting these terms according to the pathogen and correlated disease: fecal–oral, diarrhea, rotavirus, Campylobacter jejuni, bacterial, viral, foodborne transmission, antibiotics, vaccine.

List the symptoms associated with the various stages of Schistosomiasis.

True or False: Giardia infections in the United States are all imported from other countries.