Comparaison de l'immunite serique anti influenza a de diverses populations humaines et des porcs

Aymard, M.; Brigaud, M; Chastel, C.; Fontaine, M.; Tillon, J. P.; Vannier, P.

doi:10.1016/0147-9571(80)90046-6

Cited by 7 publications

(2 citation statements)

References 7 publications

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“…À la même époque, un autre système de surveillance, piloté conjointement par l'Institut Pasteur et le LCRV de Maisons-Alfort est orienté vers la détection du portage de virus grippaux chez des porcs arrivant dans un abattoir de la région parisienne. Il s'avère que les manifestations cliniques grippales typées sont absentes des élevages suivis mais que les sérums testés possèdent des anticorps A/H 1 N 1 et surtout A/H 3 N 2 correspondant à des souches virales humaines classiques (AYMARD et al, 1980 puis par PENSAERT (1981), est régulièrement isolé, y compris sur les organes d'avortons (MADEC et al, 1983. En 1984, une seconde vague grippale traçante affecte les élevages de l'Ouest.…”

Section: • Quelques éLéments Sur L'épidémiologie De La Grippe Porcineunclassified

La grippe du porc : situation épidémiologique en France

Madec¹,

Éveno²,

Rousseaux³

et al. 2004

bavf

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Section: • Quelques éLéments Sur L'épidémiologie De La Grippe Porcineunclassified

La grippe du porc : situation épidémiologique en France

Madec¹,

Éveno²,

Rousseaux³

et al. 2004

bavf

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“…Les affections grippales sont aujourd'hui largement r6pandues dans le monde et elles font l'objet d'une surveillance attentive de la part des experts de l'Organisation Mondiale de la Sant6. En raison du r61e probable du porc comme rhservoir du virus pour l'homme, les 6pid6miologistes accordent une attention particuli4re ~t l'observation de la situation sanitaire des porcins [1,2]. L'6tude s6ro-6pidhmiologique rhtrospective de la grippe chez les porcins de la rhgion de Bretagne sur une dizaine d'annhes [3] a montr4 la large diffusion du virus grippal A/FIN/I/82 (H1N~sw) dans cette population apr4s la premi4re 6pizootie de l'hiver 1981-1982.…”

Section: Introductionunclassified

Consequences pathologiques d'un episode grippal severe (virus swine A/H1N1 dans les conditions naturelles chez la truie non immune en debut de gestation

Madec

Kaiser

Gourreau

et al. 1989

Comparative Immunology, Microbiology and Infectious Diseases

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Pathological consequences of a severe outbreak of swine influenza (H1N1 virus) in the non immune sow at the beginning of pregnancy, under natural conditions. A sudden acute outbreak of fever, depression, anorexia and coughing in a group of nulliparous sows from a herd that was currently under epidemiological investigation lead to build a particular disposal of observation. The clinical signs were daily recorded including rectal temperature. Blood was taken from the sows at the beginning of the troubles and 3 weeks later for the detection of Aujesky's disease, coronavirus TGE-like, Influenza viruses A/H1N1 and A/H3N2 and Mycoplasma hyopneumoniae. Viral detection was attempted from nasal swabs and aborted fetuses during the acute phase. The clinical study showed fever reaching near 41 degrees C on most of the pigs and lasting usually from 2 to 5 days. The diagnosis of Influenza (virus swine H1N1) was established both on serology (massive seroconversion) and on the detection of the virus from the nasal swabs and from an aborted fetus. The control of the lungs of sows "not in pig" and culled showed extended lesions of bronchopneumonia and Pasteurella multocida was found. The technical consequences of this severe outbreak of Influenza on reproduction were mainly important at the beginning of pregnancy. Over 13 sows inseminated less than 1 week before the outbreak, only 3 farrowed (respectively 5.5 and 12 piglets); 7 returned to oestrus and 3 "not a pig" at 21 days (echotomography) did not show signs of heat and were culled. Over 8 pregnant sows (1 month of pregnancy), 6 farrowed normal litters and total embryonic resorption occurred in 2 sows. Over 18 pregnant sows (more than 45 days gestation) one aborted.

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Genetics, Evolution, and the Zoonotic Capacity of European Swine Influenza Viruses

2012

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The European swine influenza virus lineage differs genetically from the classical swine influenza viruses and the triple reassortants found in North America and Asia. The avian-like swine H1N1 viruses emerged in 1979 after an avian-to-swine transmission and spread to all major European pig-producing countries. Reassortment of these viruses with seasonal H3N2 viruses led to human-like swine H3N2 viruses which appeared in 1984. Finally, human-like swine H1N2 viruses emerged in 1994. These are triple reassortants comprising genes of avian-like H1N1, seasonal H1N1, and seasonal H3N2 viruses. All three subtypes established persistent infection chains and became prevalent in the European pig population. They successively replaced the circulating classical swine H1N1 viruses of that time and gave rise to a number of reassortant viruses including the pandemic (H1N1) 2009 virus. All three European lineages have the capacity to infect humans but zoonotic infections are benign.

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Comparaison de l'immunite serique anti influenza a de diverses populations humaines et des porcs

Cited by 7 publications

References 7 publications

La grippe du porc : situation épidémiologique en France

La grippe du porc : situation épidémiologique en France

Consequences pathologiques d'un episode grippal severe (virus swine A/H1N1 dans les conditions naturelles chez la truie non immune en debut de gestation

Genetics, Evolution, and the Zoonotic Capacity of European Swine Influenza Viruses

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