I can understand an anti-parasitic drug having an effect on bacterial infections. Bacteria falls under what we classically define as 'life'. Bacterial, fungal a

I can understand an anti-parasitic drug having an effect on bacterial infections. Bacteria falls under what we classically define as 'life'. Bacterial, fungal and parasitic infections share much more in common than viral infections. Viruses are a completely different form of life that causes illness in a totally different way to other forma of infectious organisms.