Two potent inhibitors based on the crystal structure of influenza viru
s sialidase have been designed. These compounds are effective inhibito
rs not only of the enzyme, but also of the virus In cell culture and i
n animal models. The results provide an example of the power of ration
al, computer-assisted drug design, as well as indicating significant p
rogress in the development of a new therapeutic or prophylactic treatm
ent for influenza infection.