Given what we know about antivirals, we can confirm that the instructor can realize there is further instruction needed when the student makes the statement that "Antivirals are the cure for viral infections".
Antivirals are a set of broad-range medications. These drugs are used to aid the body in fighting off viral infections. It is incorrect to say that they are the cure for viral infections, however, because, unlike antibiotics which attack and kill bacteria, antivirals simply prevent the infection from worsening by blocking access to the receptors the virus needs to reproduce.
Therefore, the antivirals cannot be considered a cure because on their own they would be incapable of curing a viral infection or killing the virus in question. Their goal is simply to prevent the spread of the infection while the immune system destroys the virus.
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