Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979
Sera of persons of different age groups collected in 1976, 1978 and 1979 were tested for the presence of HI antibodies against various strains of the H3N2 and H1N1 subtypes of influenza virus. The occurrence of infection by H3N2 subtype was recorded during the 1976-1978 period but in 1979, circulati...
Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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Universidade de São Paulo (USP)
1986
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ftdoajarticles:oai:doaj.org/article:1da1a05e1daa4630b6f4c0120b46d3aa 2024-09-09T19:26:02+00:00 Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 S. Takimoto R. P. de S. Carvalho H. G. Pereira C. S. Pannuti M. S. Pereira L. F. de Salles-Gomes 1986-12-01T00:00:00Z https://doi.org/10.1590/S0036-46651986000600007 https://doaj.org/article/1da1a05e1daa4630b6f4c0120b46d3aa EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651986000600007&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46651986000600007 https://doaj.org/article/1da1a05e1daa4630b6f4c0120b46d3aa Revista do Instituto de Medicina Tropical de São Paulo, Vol 28, Iss 6, Pp 413-420 (1986) Influenza virus type A Sera epidemiologic study Different agegroups Hemagglutination inhibition test Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1986 ftdoajarticles https://doi.org/10.1590/S0036-46651986000600007 2024-08-05T17:49:31Z Sera of persons of different age groups collected in 1976, 1978 and 1979 were tested for the presence of HI antibodies against various strains of the H3N2 and H1N1 subtypes of influenza virus. The occurrence of infection by H3N2 subtype was recorded during the 1976-1978 period but in 1979, circulation of this subtype of virus was limited. The prevalence of antibody against A/São Paulo/1/78 (H1N1) was significantly higher than that of antibody to A/USSB/90/77 (HIND in 1978. However in 1979 the predominant strain was A/USSR/90/77 (HIND. Persons under 20 years of age were the most affected by H1N1 subtype. Antibodies to H1N1 subtype were detected in sera of individuals older than 20 years in 1976, before the re-emergence of this strain. Serological results indicate that infections by H3N2 subtype in 1978 occurred in 65.4% of young children (0-4 year group). About 47.0% of children from the 0-4 year group had antibodies to H1N1 subtype in 1979. Antibodies to swine influenza virus were detected in 60% of 60+ year old people. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 28 6 413 420 |
institution |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Influenza virus type A Sera epidemiologic study Different agegroups Hemagglutination inhibition test Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Influenza virus type A Sera epidemiologic study Different agegroups Hemagglutination inhibition test Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 S. Takimoto R. P. de S. Carvalho H. G. Pereira C. S. Pannuti M. S. Pereira L. F. de Salles-Gomes Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
topic_facet |
Influenza virus type A Sera epidemiologic study Different agegroups Hemagglutination inhibition test Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Sera of persons of different age groups collected in 1976, 1978 and 1979 were tested for the presence of HI antibodies against various strains of the H3N2 and H1N1 subtypes of influenza virus. The occurrence of infection by H3N2 subtype was recorded during the 1976-1978 period but in 1979, circulation of this subtype of virus was limited. The prevalence of antibody against A/São Paulo/1/78 (H1N1) was significantly higher than that of antibody to A/USSB/90/77 (HIND in 1978. However in 1979 the predominant strain was A/USSR/90/77 (HIND. Persons under 20 years of age were the most affected by H1N1 subtype. Antibodies to H1N1 subtype were detected in sera of individuals older than 20 years in 1976, before the re-emergence of this strain. Serological results indicate that infections by H3N2 subtype in 1978 occurred in 65.4% of young children (0-4 year group). About 47.0% of children from the 0-4 year group had antibodies to H1N1 subtype in 1979. Antibodies to swine influenza virus were detected in 60% of 60+ year old people. |
format |
Article in Journal/Newspaper |
author |
S. Takimoto R. P. de S. Carvalho H. G. Pereira C. S. Pannuti M. S. Pereira L. F. de Salles-Gomes |
author_facet |
S. Takimoto R. P. de S. Carvalho H. G. Pereira C. S. Pannuti M. S. Pereira L. F. de Salles-Gomes |
author_sort |
S. Takimoto |
title |
Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
title_short |
Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
title_full |
Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
title_fullStr |
Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
title_full_unstemmed |
Serologic studies on the behaviour of influenza virus type A in persons of greater São Paulo during 1976, 1978 and 1979 |
title_sort |
serologic studies on the behaviour of influenza virus type a in persons of greater são paulo during 1976, 1978 and 1979 |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1986 |
url |
https://doi.org/10.1590/S0036-46651986000600007 https://doaj.org/article/1da1a05e1daa4630b6f4c0120b46d3aa |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 28, Iss 6, Pp 413-420 (1986) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651986000600007&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46651986000600007 https://doaj.org/article/1da1a05e1daa4630b6f4c0120b46d3aa |
op_doi |
https://doi.org/10.1590/S0036-46651986000600007 |
container_title |
Revista do Instituto de Medicina Tropical de São Paulo |
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28 |
container_issue |
6 |
container_start_page |
413 |
op_container_end_page |
420 |
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