Trivalent Attenuated Cold-Adapted Influenza Virus Vaccine: Reduced Viral Shedding and Serum Antibody Responses in Susceptible Adults
Trivalent cold-adapted recombinant (CR) influenza virus vaccines containing types A (H1N1 and H3N2) and Bviruses were evaluated in two double-blind, placebo-controlled trials. Susceptible adults were randomly assigned to receive the following vaccines by intranasal drops 1 month apart: two doses of...
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Published in | The Journal of infectious diseases Vol. 167; no. 2; pp. 305 - 311 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Chicago, IL
The University of Chicago Press
01.02.1993
University of Chicago Press |
Subjects | |
Online Access | Get full text |
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Summary: | Trivalent cold-adapted recombinant (CR) influenza virus vaccines containing types A (H1N1 and H3N2) and Bviruses were evaluated in two double-blind, placebo-controlled trials. Susceptible adults were randomly assigned to receive the following vaccines by intranasal drops 1 month apart: two doses of trivalent vaccine, bivalent CR influenza A (Bi A) vaccine followed by monovalent B (Mono B) vaccine or vice versa, or two doses of placebo. All vaccines were well tolerated. Shedding of each of the three vaccine viruses was reduced after the first dose of trivalent vaccine compared with primary vaccination with Bi A or Mono B. Shedding was also reduced after second vaccinations, whether homologous (trivalent-trivalent) or heterologous (Bi A/Mono B or Mono B/Bi A). Reduced viral shedding was associated with reduced serum antibody responses. Thus, both simultaneous and sequential inoculations of susceptible adults with CR influenza vaccine viruses result in reduced viral shedding and serum antibody responses. |
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Bibliography: | istex:92C3234AE22CAC90675886D2E677068671E171EC ark:/67375/HXZ-GCH94GLK-9 Reprints or correspondence: Dr. Wendy Anne Keitel, Acute Viral Respiratory Diseases Unit, Department of Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-News-3 |
ISSN: | 0022-1899 1537-6613 |
DOI: | 10.1093/infdis/167.2.305 |