Goat purified IgG fraction of antiserum to intact Oocytes of Cryptosporidium parvum. The immunogen is Oocytes purified from bovine feces. Cross-reacts with a large rod-shaped microorganism found in bovine feces. Known to function in ELISA and IFA. Purity is >95% IgG and is supplied at a concentration of 4-5mg/mL in 0.01M PBS, pH 7.2 with 0.1% sodium azide. Recommend short term storage at 2-8°C or frozen for long term.