INTRODUCTION: The objective of this study was to investigate the effect of acyclovir (ACV) on the TLR9 signaling pathway after human immortalized epidermal (HaCaT) cell infection with herpes simplex virus type 2 (HSV-2). METHODS: In this study, an in vitro cell model of HSV-2 infection was successfully constructed by infecting HaCaT with HSV-2 virus. In order to explore the antiviral mechanism of acyclovir (ACV), high-throughput transcriptome sequencing (RNA-seq) was used to analyze the genome-wide expression profiling of infected cells before and after ACV treatment, and to systematically com...