exhibited bactericidal action was A) A B) B C) C D) D E) The answer cannot be determined based on the information provided. Answer: D 43) In Table 20.2, which antimicrobial would be most useful for treating a Salmonella infection? A) A B) B C) C D) D E) The answer cannot be determined based on the information provided. Answer: E 44) If you tested a 2nd strain of S. aureus with the same method and concentrations of drugs as indicated in Table 20.2, but you found that the zone of inhibition caused by drug D had dropped to 2 mm, what does this indicate? A) The 2nd strain of bacteria is likely resistant to drug D. B) The 2nd strain of bacteria is much more sensitive to drug D. C) The experiment wasn't conducted properly and is giving inaccurate results. D) There is no functional difference between how the 2 strains react to the drug. Answer: A 45) TRUE or FALSE: Antiviral drugs target viral processes that occur during viral infections. Answer: TRUE