@BambooForest, another problem in recent years related to fighting viruses is the growing obsession with medications and shots to treat influenza, perhaps the best known viral disease. The problem from this is that because viruses can mutate and reproduce so easily, and are so difficult to classify, an increase in products such as Tamiflu has only led to a growth in stronger flu strains. This problem is similar to what happens when an area is sprayed for mosquitoes; nearly all of the insects die, but the ones which survive had the highest resistance, leading to later generations have that stronger resistance.
Additionally, the problem with an increase in flu shots is that there are many strains of influenza in any given flu season, and a flu shot only protects against one flu strain. Additionally, flu shots lower immunity in many people for at least a short time after they are given, often causing those people to get sick with one of the other viruses infecting the population.