How does mad cow disease spread?

Eating bad beef: Infected cattle, which got the disease by eating animal by-products, produce infectious beef. The prion is not damaged even by thorough cooking. It is also possible that slaughterhouse workers exposed to aerosolized cattle parts might be infected in this way.

Variable: Conceive that ingestion or contact with the prion infection could result in the disease, so best not to eat the raw meat, or even the cooked meat, if infected, or get an organ transplant from a human who has the illness. But, do not worry, the cases occurred in england, not in the usa.

Read below: Bovine spongioform encephalopathy (mad cow disease) is a prion disease, infective agents that vary from viruses in not having dna or rna. The agent can be transferred by ingestion or surgery transplanting the infected tissue (e.g. Cornea ) it is fortunately extremely rare for this to happen nowadays.