Affiliation: GlaxoSmithKline Research and Development
Bacon T, Boon R, Schultz M, Hodges Savola C. Surveillance for antiviral-agent-resistant herpes simplex virus in the general population with recurrent herpes labialis. Antimicrob Agents Chemother. 2002;46:3042-4 pubmed
..Two isolates had borderline resistance to acyclovir (0.2%), and all were susceptible to penciclovir...