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12 Cards in this Set
- Front
- Back
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The emergence of antimicrobial-resistant salmonella is associated with?
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a worldwide public health problem
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Most salmonella infections in humans result from?
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the ingestion of contaminated poultry, beef, pork, eggs, and milk
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The use of antimicrobial agents in any environment creates?
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creates selection pressures that favor the survival of antibiotic-resistant pathogens
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Why are antimicrobial agents routinely given to domestic livestock?
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they are given as a means of preventing and treating diseases as well as to promote growth
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What process was used to generate genomic-DNA profiles, or "fingerprints"?
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pulsed-field gel electrophoresis used on DNA fragments from digestion by restriction enzymes
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What percentage of the ground meat samples contained salmonella isolates?
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20%
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What percentage of isolates displayed resistance to at least one antibiotic? to three?
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84% / 53%
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If you needed to treat a patient with Salmonella poisoning, which four antimicrobial agents still work?
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amikacin, apramycin, ciprofloxacin, and nalidixic acid
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The contamination of retail meats with salmonella mainly reflects? and intervention strategies should focus on?
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reflects the carriage of organism by livestock; should focus principally on reducing the number of pathogens present on farms and in slaughterhouses
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Integrons have been associated with? and often contain?
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associated with the transfer of resistance and often contain one or more linked antimicrobial-resistant genes
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The high prevalence of multidrug-resistant salmonella in retail ground meats reflects?
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reflects a reservoir of resistance in animals that can be transmitted to humans
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What efforts are needed to reduce the prevalence of resistant salmonella in food?
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the adoption of guidelines for the prudent use of antimicrobial agents in animals used for food, the passage of new food-safety regulations, a reduction in the number of pathogens on farms and in slaughterhouses
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