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.
Lobsters do not age as we do. They do not die of the debility of old age. They are killed, eaten and they may die of infection just as humans do. Lobsters continue to absorb nutrition throughout life, while humans gradually seem to lose the ability to absorb specific nutrition.