";s:4:"text";s:2587:" Designing antiviral drugs is challenging because the viruses use synthetic process of the host’s cells to replicate (Internet: Antiviral drug). Today, there are more antiviral drugs for HIV than for any other viral disease, transforming an infection that was once considered a death sentence into a manageable chronic condition. Because viruses are contained inside human cells while they are in the body, researchers have difficulty developing effective drugs that destroy a virus without harming the human host. In this case, you might even receive antivirals if you have been vaccinated as an additional level of precaution to reduce the spread and to keep staff healthy. Antimicrobial drugs are chemicals that are intended to have selective toxicity against microbes, meaning that they kill microbial cells but not the host's cells. Successful antivirals target and disrupt a process or structure unique to the virus, thereby preventing viral replication while minimising harm to the patient.
These medicines have been much more difficult to develop than antibacterial drugs because antivirals can damage host cells where the viruses reside.
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Contraindications Any antiviral flu drug is contraindicated if you have previously had a serious reaction to the drug or any of its components. Keeping host cells alive while you do it is the hard part.