Flu Vaccines Can Make Inflammation Worse

Byron's Comments:

The flu vaccine may actually pile on to an existing inflammatory problem.

Study Title:

Association between cytomegalovirus infection, enhanced proinflammatory response and low level of anti-hemagglutinins during the anti-influenza vaccination.

Study Abstract:

We assessed association between prior cytomegalovirus (CMV) infection, proinflammatory status and effectiveness of the anti-influenza vaccination. We examined 154 individuals during the epidemic season dividing them according to the age, response to the vaccine and the Senieur Protocol (SP). The anti-hemagglutinins (HI), tumour necrosis factor alpha (TNFalpha), interleukin (IL) 1beta, IL6, IL10, ACTH/cortisol axis, anti-CMV antibodies and CD28+CD57- lymphocytes were assessed. Non-responders of both ages we characterised by higher levels of anti-CMV IgG and higher percentages of CD57+CD28- lymphocytes (known to be associated with CMV carrier status) together with increased concentrations of TNFalpha and IL6 and decreased levels of cortisol. The anti-influenza vaccine induced increase in TNFalpha and IL10 in the all non-responders, while cortisol increased only in the young. Concluding, CMV carrier status eliciting elevated proinflammatory potential could contribute to unresponsiveness to the anti-influenza vaccine.

Study Information:

Trzonkowski P, Mysliwska J, Szmit E, Wieckiewicz J, Lukaszuk K, Brydak LB, Machala M, Mysliwski A. Association between cytomegalovirus infection, enhanced proinflammatory response and low level of anti-hemagglutinins during the anti-influenza vaccination. Vaccine 2003 September 8;21(25-26):3826-36.
Department of Histology and Immunology, Medical University of Gdansk, Ul. Debinki 1, 80-211 Gdansk, Poland.



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