Survival curves to gamma radiation of human adenovirus type 5 (HAdV-5) for several suspension matrices: phosphate-buffered saline (PBS), deionized filtered water (DI water), tap water, 100% solution of fetal bovine serum (FBS), 50% solution of FBS in PBS (50% FBS), 10% solution of FBS in PBS (10% FBS), and wastewater collected from a municipal wastewater treatment plant before tertiary treatment. Error bars correspond to the standard errors about the mean values (n = 6).