Immunoglobulins are antibodies and are found in the blood and bodily fluids to be used by the immune system in order to combat bacteria and viruses.
 
 
Recommended Resources
Understanding Immune Globulin's Role in Hepatitis
Discusses the immunization therapy which entails the use of immune globulin and its role in prevention of viral hepatitis as well as comparing it to run-of-the-mill vaccines.
http://www.hepatitis-central.com/mt/archives/2009/10/understanding_i.html
Vaccine Information: Immue Globulin
The Seattle and King County Health Department publishes this item regarding information about immune globulins and their role in the prevention of communicable diseases.
http://depts.washington.edu/druginfo/Vaccine/HealthDept/ImmuneGlobulin.html
Offers an overview of immunuglobulin and its uses, including prevention of chickenpox, measles, and hepatitis as well as Rh sensitization.
http://health.yahoo.net/channel/infections-and-viruses.html