( This ( ( would ( have ( ( an ( immediate impact ) ) ( of ( inhibiting ( ( the spread ) ( of ( ( email carried ) viruses ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (MD would) (VP (VB have) (NP (NP (DT an) (JJ immediate) (NN impact)) (PP (IN of) (S (VP (VBG inhibiting) (NP (NP (DT the) (NN spread)) (PP (IN of) (NP (ADJP (NN email) (VBN carried)) (NNS viruses)))))))))) (. .)))
This would have an immediate impact of inhibiting the spread of email carried viruses.
(ROOT (S (NP (NNP Tamiflu)) (VP (VBZ inhibits) (NP (NP (NN spread)) (PP (IN of) (NP (NN virus))))) (. .)))