A single pair of oligonucleatide primer selected within a highly conserved region of the DNA polymerase gene in herpesviruses was synthesized. The competitive template DNA purified from cytomegalovirus (CMV) DNA was used to carry out competiitve PCR amplification with herpes simplex virus type 1 (HSV1) DNA (target sequences). And anti-HSV1 effects of acyclovir (ACV) was investigated by the method.The results showed that the efficacy of PCR amplification was equal to each other(the ratio of the quantity of competitor template with DNA to the target sequence was 1.5:1). As the concentration of ACV was increased, the quantity of HSV1 DNA was decreased. It suggests that this method is practicable and some defects of mutant template can be overcomed.
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