Obviously, host cells do not "want" to be infected by viruses, yet they contain receptors that allow viral entry. Why do these receptors exist on the host cells and why can't we develop antiviral drugs to block these receptors and eliminate viral attachment. The rabies virus is somewhat unusual in that it can infect a wide range of mammalian species. Given this information, what conclusions might you draw about the host cell receptor used by this virus? Explain. When someone is bitten by a rabid animal part of the treatment includes injection of antibodies that target the rabies virus. Explain how this treatment helps the person bitten by the rabid animal.