Oocistos deCryptosporidium parvum em fezes de bezerro infectado experimentalmente

Martins-Vieira, M. B. CBrito, L. A. LHeller, L

A dose of 5.0x106 Cryptosporidium parvum oocysts was inoculated in a newborn calf. After the inoculation, the feces were daily collected and the presence of oocysts was examined on slides using 0.17% green malachite dye. The total yield reached 1.5x1010 oocysts, with a peak production on the 7th day, confirming the infectious process and the role of calf infection in the potential risk for environmental contamination. (AU)

1. Cryptosporidium parvum
2. bezerro
3. calf
4. experimental infection
5. infecção experimental