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  • Title: [Incidence of circulating antibodies against hemagglutinin and neuraminidase of influenza viruses in the epidemic season 1991/92 in Poland].
    Author: Brydak L, Rudnicka H.
    Journal: Przegl Epidemiol; 1993; 47(4):433-6. PubMed ID: 8171205.
    Abstract:
    The levels of antibodies were tested in 9 groups from 6 months up to over 65 years for HA and NA of influenza A (H1N1), A (H3N2) and B in epidemic season 1991/92 in Poland. HI and NI tests were performed with viruses A/Taiwan/1/86, A/Beijing/353/89 and B/Panama/45/90, these were recommended by WHO for this season. The highest GMT were found for hemagglutinin H3 and HB, much lower for H1. For H3 much higher GMT were found in groups 3-8 and over 65 years. The GMT for HB were almost the same in all age groups, but the highest in 3-8 years. In case of neuraminidases the highest GMT were found for NB in group 51-64, other groups were much different. GMT for N2 were different but in 41-50 and over 65 years they were highest. For N1 the highest GMT was found over 65 years.
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