Moist heat inactivation of Cryptosporidium sp
- PMID: 4061720
- PMCID: PMC1646437
- DOI: 10.2105/ajph.75.12.1433
Moist heat inactivation of Cryptosporidium sp
Abstract
Cryptosporidia that were infective for infant mice were subjected to various moist heat treatments and subsequently tested in infant mice for infectivity. Warming from 9 degrees C to 55 degrees C over a period of 15 to 20 minutes neutralized infectivity in calf feces, cecal contents, and ileal scrapings. Inocula held at 45 degrees C for 5 to 20 minutes lost its infectivity. These results suggest that pasteurization of raw milk, circumstantially incriminated in cryptosporidial transmission, would neutralize cryptosporidial infectivity.
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