Posts Tagged ‘ adverse events ’

Treating Adverse Vaccine Reactions by W. Jean Dodds, DVM

June 14, 2012

CLINICAL APPROACHES TO MANAGING AND TREATING ADVERSE VACCINE REACTIONS 

 Background There is no doubt that application of modern vaccine technology has permitted us to protect companion animals effectively against serious infectious diseases.

Viral disease and recent vaccination with single or combination modified live-virus (MLV) vaccines, especially those containing distemper virus, adenovirus 1 or 2, and parvovirus are increasingly recognized contributors, albeit relatively rare,  to immune-mediated blood disease, bone marrow failure, and organ dysfunction. Potent adjuvanted killed vaccines like those for rabies virus also can trigger immediate and delayed (vaccinosis) adverse vaccine reactions. Genetic predisposition to these disorders in humans has been linked to the leucocyte antigen D-related gene locus of the major histocompatibility complex, and is likely to have parallel associations in domestic animals.

It must be recognized, however, that we have the luxury of asking such questions today only because the risk of disease has been effectively reduced by the widespread use of vaccination programs.

Adverse Events Associated with Vaccination The clinical signs associated with vaccine reactions typically include fever, stiffness, sore joints and abdominal tenderness, susceptibility to infections, neurological disorders and encephalitis, collapse with autoagglutinated red blood cells and icterus (autoimmune hemolytic anemia, AIHA, also called immune-mediated hemolytic anemia, IMHA), or generalized petechiae and ecchymotic  hemorrhages (immune-mediated thrombocytopenia , ITP).  Hepatic enzymes may be markedly elevated, and liver or kidney failure may occur by itself or accompany bone marrow suppression.

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Preventing Vaccine Adverse Effects for Pets and People

May 25, 2012

By Jean Hofve, DVM

For our pets, the rabies vaccine is a legal requirement. There are similar requirements for a variety of vaccines for children entering school. Officials even considered making the swine flu mandatory for U.S. residents, though this threat has not yet manifested.” Here are suggestions on how to prevent the potentially deadly adverse effects of vaccination. Plan ahead, and be prepared! (For a 1-page summary that you can copy and paste to make for easy printing, click here.)

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