Which of the following is not considered an antigen-presenting cell?
AMacrophages
BLangerhans cells
CThymocytes
DB lymphocytes
Which of the following is a type of inflammatory bowel disease primarily affecting the small intestine? a) Coeliac disease b) Tropical sprue c) Regional ileitis d) Cystic fibrosis e) Ulcerative colitis
AUlcerative colitis
BCystic fibrosis
CTropical sprue
DRegional ileitis
ECoeliac disease
A clinically depressed farmer complains of extreme weakness, a daily rise and fall in fever, and night sweats. Small gram-negative rods are isolated from blood cultures after a 2-week incubation period. Which of the following organisms is the most likely etiologic agent?
ACampylobacter jejuni
BFrancisella tularensis
CBrucella melitensis
DSalmonella enteritidis
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