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Persistence of colostral antibodies against Virus-Infection-Associated (VIA) antigen and virus neutralizing antibodies induced by natural infection with foot-and-mouth disease virus in indian buffalo (Bubalus bubalis) calves / Persistência de anticorpos colostrais antiantígeno via ("Virus-Infection - Associated") e anticorpos soroneutralizantes induzidos por infecção natural pelo vírus da febre aftosa em bezerros búfalos indianos (Bubalus bubalis)
Issa Samara, Samir; Augusto Pinto, Aramis; Gitla Abuhad, Tauba; Koseki, Ignes; Ibira Gonçalves, Ernani; Cabrera Mano Filho, Antonio.
Afiliação
  • Issa Samara, Samir; s.af
  • Augusto Pinto, Aramis; s.af
  • Gitla Abuhad, Tauba; s.af
  • Koseki, Ignes; s.af
  • Ibira Gonçalves, Ernani; s.af
  • Cabrera Mano Filho, Antonio; s.af
Braz. j. vet. res. anim. sci ; 24(1): 35-40, 1987.
Article em Pt | LILACS-Express | VETINDEX | ID: biblio-1470370
Biblioteca responsável: BR68.1
ABSTRACT
Antibody against virus-infection-associated (VIA) antigen and neutralizing serum antibody to foot-and-mouth disease virus were studied in 32 non vaccinated Indian buffalo calves. Antibody levels against VIA antigen were detected by double immunodifusion in 76.5% of the animals at 3 + ½, 30% at 4 + ½ and 6.2% at 5 + ½ months of age. Antibody against VIA antigen was no longer detectable at 7 + ½, 8 + ½ and 9 + ½ months of age. Neutralizing serum antibody levels were studied in 12 of 32 animals. At 3 = ½ months of age neutralizing serum antibody for O1, A24, and C3 virus were found respectively in 83.3%m 83.3% ans 65.6% of samples. At 5 + ½ months of age neutralizing serum antibody was present against the three types only in 20% of the animals and was not detected at 7 + ½ months of age. Twenty one days after the outbreak in cattle when the buffalo calves were 12 + ½ months old antibody against VIA antigen was again detected in 20 of 32 (62.5%) of the animals. Neutralizing serum antibody was found in up to 63.3% of the animals against type A and 16.6% against type O1 and C3.
RESUMO
Anticorpos anti-antigeno VIA e anticorpos soroneutralizantes foram estudados em 32 bezerros búfalos indianos não vacinados, a partir de 3 + ½ meses de idade até 1 ano. Esses anticorpos foram detectados até os 5 = ½ meses de idade dos animais, até sofrerem infecção natural do vírus da febre aftosa, o que ocorreu aos 12 + ½ meses de idade. O significados destes achados em relação a susceptibilidade dos bubalinos a essa doença é discutido.
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Texto completo: 1 Base de dados: VETINDEX Idioma: Pt Revista: Braz. j. vet. res. anim. sci Ano de publicação: 1987 Tipo de documento: Article
Texto completo: 1 Base de dados: VETINDEX Idioma: Pt Revista: Braz. j. vet. res. anim. sci Ano de publicação: 1987 Tipo de documento: Article