Cold-Adapted Variants of Influenza A Virus: Evaluation in Adult Seronegative Volunteers of A/Scotland/840/74 and A/Victoria/3/75 Cold-Adapted Recombinants Derived from the Cold-Adapted A/Ann Arbor/6/60 Strain
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چکیده
منابع مشابه
Development and Sequence Analysis of a Cold-Adapted Strain of Influenza A/New Caledonia/20/1999(H1N1) Virus
Background and Aims: Vaccination is the most effective method to prevent influenza infection. Among the available vaccines, cold-adapted live-virus vaccines are suitable approach that have been produced and evaluated for recent years in few countries. The goal of this project was to derivate a cold adapted variant of the influenza A/New Caledonia/20/1999(H1N1). Materials and Methods: Influenza ...
متن کاملCold-adapted variants of influenza virus A. I. Comparison of the genetic properties of ts mutants and five cold-adapted variants of influenza virus A.
The genetic properties of seven cold-adapted variants of influenza virus A were compared with those of nine Lfluorouracil (5-FU)-induced ts mutants. The 5-FU mutants had previously been placed into seven complementation-recombination groups; five of the seven cold-adapted variants also had the ts phenotype, and all five were shown to share the group 1 lesion. Three of the cold variants also had...
متن کاملRecombinant cold-adapted attenuated influenza A vaccines for use in children: reactogenicity and antigenic activity of cold-adapted recombinants and analysis of isolates from the vaccinees.
Reactogenicity and antigenic activity of recombinants obtained by crossing cold-adapted donor of attenuation A/Leningrad/134/47/57 with wild-type influenza virus strains A/Leningrad/322/79(H1N1) and A/Bangkok/1/79(H3N2) were studied. The recombinants were areactogenic when administered as an intranasal spray to children aged 3 to 15, including those who lacked or had only low titers of pre-exis...
متن کاملRecombinant cold-adapted attenuated influenza A vaccines for use in children: molecular genetic analysis of the cold-adapted donor and recombinants.
A previously described cold-adapted attenuated virus, A/Leningrad/134/17/57 (H2N2), was further modified by 30 additional passages in chicken embryos at 25 degrees C. This virus had a distinct temperature-sensitive (ts) phenotype, grew well in chicken embryos at 25 degrees C, and failed to recombine with reference ts mutants of fowl plague virus containing ts lesions in five genes coding for no...
متن کاملdevelopment and sequence analysis of a cold-adapted strain of influenza a/new caledonia/20/1999(h1n1) virus
background and aims: vaccination is the most effective method to prevent influenza infection. among the available vaccines, cold-adapted live-virus vaccines are suitable approach that have been produced and evaluated for recent years in few countries. the goal of this project was to derivate a cold adapted variant of the influenza a/new caledonia/20/1999(h1n1). materials and methods: influenza ...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1979
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.23.2.253-259.1979