Just one tablespoon of feces from a Crypto-infected calf contains enough oocysts to infect dozens of other calves if they consume it orally. The tiny oocysts have a hard outer shell that encloses and protects the parasite making them difficult to kill.
. . . the most effective way to keep Crypto at bay is to remove moisture from calf environments and feeding utensils as oocysts need moisture for sustenance.”
Source: Dairy Herd Management, August 14, 2023. Link. “It is critical to remember that Crypto can cause disease in humans. So appropriate strategies, such as wearing gloves, should be used every time a sick calf is handled.”