A practitioner took a scab from someone with a mild case, made an incision in the skin of a healthy person, and infected that person with the scab. Sheep-scab is a loathsome skin disease due to an acarian parasite.
I did find this link, but I don't think it will help out much, because there is nothing on the internet about it, other than this. http://en.allexperts.com/q/Wild-Animals-705/frozen-crab-life-thawed.htm. Or you can go to this link. Its about frozen lobsters coming back to life after thawed.
Buy: Lobster is a shellfish which is sold frozen, alive, fresh, and cooked. It is best to buy live lobsters. Do not buy dead fresh lobsters, tinned lobster, or cooked picked lobster meat. Lobsters range in colour depending on the species, see Type below.