Activities of arabinosyladenine monophosphate and 9-(1,3-dihydroxy-2-propoxymethyl)guanine against ground squirrel hepatitis virus in vivo as determined by reduction in serum virion-associated DNA polymerase.

Treatment of chronic ground squirrel hepatitis virus infection with arabinosyladenine monophosphate at 20 mg/kg per day for 3 weeks caused marked decreases in serum virion-associated DNA polymerase concentrations in three of five squirrels. Statistically significant but less dramatic decreases in enzymatic activity were noted in two of six squirrels treated with 50 mg of 9-(1,3-dihydroxy-2-propoxymethyl)guanine per kg per day. After therapy, DNA polymerase activities rose to pretreatment levels.