I would not be concerned, Blood Sausage is cooked; any steak still has blood in it, and I pour that out of a package and cook it, uuummm good.
Blutwurst (Blood Sausage)
Also Known As: Schwarzwurst, Rotwurst, Topfwurst, Blunzen
A dark, almost black sausage made from fresh pig's blood, diced pork and pork fat, salt, pepper, and assorted seasonings. Blutwurst comes in varying sizes. Some are 6-inch links (2 inches in diameter). Other Blutwurst are large, bologna sized sausages.

Blood Sausage Continental, 11 oz.
$11.90

Blood Sausage (Stiglmeier) approx. 1lb
$ 7.99