Effect of previous or simultaneous immunization with canarypox expressing cytomegalovirus (CMV) glycoprotein B (gB) on response to subunit gB vaccine plus MF59 in healthy CMV-seronegative adults

David I. Bernstein, Mark R. Schleiss, Klara Berencsi, Eva Gonczol, Michelle Dickey, Phil Khoury, Michel Cadoz, Claude Meric, John Zahradnik, Anne Marie Duliege, Stanley Plotkin

Research output: Contribution to journalArticle

70 Scopus citations


Development of a vaccine for prevention of congenital cytomegalovirus (CMV) disease is a priority. This study evaluated a "prime-boost" strategy by comparing the safety and immunogenieity of 3 doses of subunit CMV glycoprotein B (gB) vaccine plus MF59 (a squalene-in-water emulsion), 2 doses of a eanarypox recombinant vaccine expressing CMVgB (ALVAC-CMVgB) followed by 2 doses of the subunit gB vaccine, 3 doses of both vaccines administered concomitantly, and placebo in 105 healthy, CMV-seronegative adults. Systemic adverse events were rare, but local reactions were common in all groups. After the first subunit vaccination, neutralizing antibody titers in the prime-boost group were comparable to those in subjects receiving 2 subunit vaccinations, indicating a priming effect of ALVAC-CMVgB. However, after the final dose, antibody and cell-mediated immune responses were not significantly different among the groups. All 3 vaccine regimens induced high-titer antibody and lymphoproliferative responses, but no benefit for priming or simultaneous vaccination was detected.

Original languageEnglish (US)
Pages (from-to)686-690
Number of pages5
JournalJournal of Infectious Diseases
Issue number5
StatePublished - Mar 1 2002
Externally publishedYes


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