NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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viruses are obligate intracellular parasites so the host cell can be harmed by the drug.
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viruses do not have specific replication cycles that can be targeted.
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viruses do not contain genetic material.
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their life cycles do not have distinctive stages.
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Detailed explanation-1: -Because viruses are contained in the cells, researchers find it is difficult to develop antiviral drugs, including vaccines.
Detailed explanation-2: -These medicines have been much more difficult to develop than antibacterial drugs because antivirals can damage host cells where the viruses reside.
Detailed explanation-3: -Viruses are non-living outside the host cells and become living inside the host as it uses the host’s cells as machinery to replicate. This property of virus makes it difficult to find targets for the drug that would interfere with the virus without also harming the host organism’s cells.
Detailed explanation-4: -Viruses are small and relatively simple microbes that cannot grow outside of living cells, that is, they are obligate intracellular parasites (Figure 1).