[Influenza vaccination of human immunodeficiency virus-infected patients with severe immunodepression. Impact on CD4 lymphocytes and plasma viral load].
Med Clin (Barc) 2001;
117:410-2. [PMID:
11602169 DOI:
10.1016/s0025-7753(01)72131-8]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND
The aim of this study was to assess the effect of influenza vaccination on plasma HIV viral load and CD4 T-lymphocytes in patients with advanced HIV disease.
PATIENTS AND METHOD
Observational study carried out in HIV-infected patients with a CD4 cell count < 200 X 10(6)on highly active antiretroviral therapy(HAART). Influenza vaccine was voluntarily offered and plasma viral load and CD4 cell counts were measured at baseline, 4 weeks and 12 weeks in vaccinated and control subjects.
RESULTS
Sixteen patients were analysed, 10 of them being immunized with the influenza vaccine. A significant decline in CD4 cell counts at 4 and 12 weeks and an increasing trend of viral load were seen in all immunized patients who had a high viral load at the time of vaccination (n = 6), but not in those with an undetectable viral load. The mean decrease of CD4 T-lymphocytes in these 6 patients was 49.8%. Three patients showed a huge drop of the CD4 cell count (over 60% of baseline).
CONCLUSIONS
Influenza vaccination of severely immunocompromised HIV-infected patients who are failing to HAART might be associated with an immunological impairment.
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