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Question 25 (6 points) Which one of the following does NOT contribute to the incidence of nosocomial infections? A) antibiotic resistance B) lapse in aseptic techniques C) gram-negative cell walls D) lack of handwashing E) lack of insect control Question 24 (6 points) Which of the following WBCs are NOT lymphocytes? OA) cytotoxic T cells B) helper T cells C) NK cells D) M cells E) B cells Question 21 (6 points) Protozoan and helminthic diseases are difficult to treat because A) their cells are structurally and functionally similar to human cells. B) they replicate inside human cells. C) they do not have ribosomes. D) they do not reproduce. E) they have more genes than bacteria. Question 19 (6 points) A skin infection know as a furuncle may result from this pathogen A) Staphylococcus aureus B) Influenza C) Streptococcus pyogenes D) Salmonella E) Mycobacterium tuberculosis
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