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A 42 year old woman who was complaining of shaking chills and fever went to the Salt Lake City Homeless clinic. She had enlarged lymph nodes in the right axilla. Upstream from the enlarged nodes was an ulcer on the top of the patients right hand. When carefully questioned, the patient said she remembered being bitten there by an insect resembling a horsefly, but with yellow stripes on its abdomen; Its what we used to call a deerfly, she added laconically. The patient denied any contact with rats or fleas. The patients disease was most likely to be:? |
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It is extremely difficult to eradicate staphylococcal infection in the presence of a foreign body. Thus, infected artificial joints and infected intravenous lines often must be removed in conjunction with optimal intravenous anti-staphylococcal therapy with oxacillin or nafcillin (sometimes in combination with rifampin) in order to eradicate such staphylococcal infections (and these attempts are not always successful). Staphylococcal infection of bone may persist for many years despite what should be optimal antimicrobial therapy. The most likely reason for this tenacity of staphylococcal osteomyelitis is:? |
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Physical findings and other factors that should suggest the presence of septicemia in a particular patient are all of the following except? |
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The diagnosis of septicemia should be considered in patients who are at increased risk of blood stream infection (often secondary to local disease, such as urinary tract infection or pneumonia). All of the following are factors predisposing patients to septicemia except? |
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Which of the following extracellular enzymes produced by Group A-streptococci is called ?spreading factor?, an enzyme important in skin and soft tissue infection? |
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All of the following statements about the M-protein of Group A- Streptococci are correct EXCEPT? |
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A 12 year old boy presents with acute onset of sore throat, fever to 38.9 degrees C and painful anterior cervical lymphadenopathy. On exam the pharynx is red and swollen and the tonsils are covered with yellow-white exudates. The child also has halitosis. Which of the following non-suppurative complications are of concern? |
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Which of the following statements about Group B a streptococcus (Streptococcus agalactiae) is not correct? |
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Which of the following statements about the 23-valent pneumococcal vaccine is not correct? |
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What is the O antigen of Enterobacteriaceae? |
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All Enterobacteriaceae share all of the following characteristics EXCEPT? |
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A 12 year old boy presents with acute onset of sore throat, fever to 38.9 degrees C and painful anterior cervical lymphadenopathy. On exam the pharynx is red and swollen and the tonsils are covered with yellow-white exudates. The child also has halitosis. Which of the following non-suppurative complications are of concern? |
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Which of the following statements about Group B a streptococcus (Streptococcus agalactiae) is not correct? |
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Which of the following statements about the 23-valent pneumococcal vaccine is not correct? |
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What is the O antigen of Enterobacteriaceae? |
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All Enterobacteriaceae share all of the following characteristics EXCEPT? |
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Influenza virus hemagglutinins play a significant role in which of the following phases of viral replication? A. Uncoating B. Virion Assembly C. Release by budding D. Adsorption E. Production of mRNA |
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A cytolytic virus would be expected to cause cytopathic effect in cell culture? A. True B. False
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All of the following are true statements regarding viruses EXCEPT? A. They contain both RNA and DNA B. The nucleic acid may be single or double stranded C. They are obligate intracellular parasites D. They reproduce using host cell energy E. The infectious particle is called a virion
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Antiviral drugs currently on the market, including acyclovir and pencyclovir are active against enteroviruses? A. True B. False |
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