globulin

1. (biochemistry) Any of a group of simple proteins, soluble in water only in the presence of salts, that are coagulated by heatExamples: "The most effective approach to delaying and preventing recurrent HBV infection has been high dose immune globulin (anti-HBsIg) perioperatively and postoperatively (table 4)."; "On the good news front, the guide reports that a new hepatitis A vaccine, which is now licensed in Europe, should be available in the United States sometime this year. It provides longer protection than the current recommended vaccine -- immune globulin (IG) -- against the hepatitis A virus, which means it does not have to be administered as frequently."; "Even for the unprotected, those who are exposed can expect 90 percent effectiveness with a course of postexposure prophylaxis that includes hepatitis B immune globulin and initiation of hepatitis B vaccine."countableuncountable