The humoral response (haemagglutination inhibiting antibodies) to trivalent split influenza vaccine for the 1993-94 winter season (A/Beijing/32/92(H3N2), A/Singaporel 6/86(H1N1) and B/Panama/45/90) was evaluated in a group of young HIV-seropositive ex-intravenous heroin users and compared with responses measured in HIV-seronegative individuals with a similar history. HIV-negative volunteers showed an overall positive response suggesting that previous heroin use did not influence their humoral response to influenza vaccine, Comparable results were obtained in HIV-positive subjects with CD4+ lymphocyte counts >500 mu l(-1), whereas impaired reactivity was found in HIV-positive volunteers with CD4+ counts <500 mu l(-1). Booster vaccination did not increase antibody levels in any of the groups studied, although the data did not exclude a positive influence of a second vaccine dose on persistence of antibody at 120 days after the first dose, No significant changes were observed in p24 antigenemia levels in HIV-positive individuals after vaccination. Copyright (C) 1997 Elsevier Science Ltd.

Immunogenicity of influenza vaccine (1993-94 winter season) in HIV-seropositive and -seronegative ex-intravenous drug users

Tascini C;
1997-01-01

Abstract

The humoral response (haemagglutination inhibiting antibodies) to trivalent split influenza vaccine for the 1993-94 winter season (A/Beijing/32/92(H3N2), A/Singaporel 6/86(H1N1) and B/Panama/45/90) was evaluated in a group of young HIV-seropositive ex-intravenous heroin users and compared with responses measured in HIV-seronegative individuals with a similar history. HIV-negative volunteers showed an overall positive response suggesting that previous heroin use did not influence their humoral response to influenza vaccine, Comparable results were obtained in HIV-positive subjects with CD4+ lymphocyte counts >500 mu l(-1), whereas impaired reactivity was found in HIV-positive volunteers with CD4+ counts <500 mu l(-1). Booster vaccination did not increase antibody levels in any of the groups studied, although the data did not exclude a positive influence of a second vaccine dose on persistence of antibody at 120 days after the first dose, No significant changes were observed in p24 antigenemia levels in HIV-positive individuals after vaccination. Copyright (C) 1997 Elsevier Science Ltd.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1199008
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 41
social impact