Mj. Levin et al., Development of acyclovir-resistant herpes simplex virus early during the treatment of herpes neonatorum, PEDIAT INF, 20(11), 2001, pp. 1094-1097
Genotypic analysis of herpes simplex virus (HSV) DNA extracted from clinica
l specimens from a case of fatal disseminated neonatal HSV demonstrated tha
t an infant developed an acyclovir-resistant HSV containing a mutation in t
he HSV thymidine kinase gene during the first seven days of acyclovir thera
py.