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Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
by
Soriano, Sergio
, Gomes, Viviani
, Baccili, Camila Costa
, Pedroso, Natália Hettwer
, Marques, Raquel Sousa
, Flores, Eduardo Furtado
in
AGRONOMY
/ Animals
/ Antibodies
/ Cattle
/ Diarrhea
/ Farms
/ Herpes viruses
/ Immune response
/ Immunity (Disease)
/ Immunity (passive)
/ Immunization
/ Immunology
/ Neutralization
/ passive immunity
/ Serology
/ serum neutralization and vaccines
/ Statistical analysis
/ Vaccines
/ Viruses
2024
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Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
by
Soriano, Sergio
, Gomes, Viviani
, Baccili, Camila Costa
, Pedroso, Natália Hettwer
, Marques, Raquel Sousa
, Flores, Eduardo Furtado
in
AGRONOMY
/ Animals
/ Antibodies
/ Cattle
/ Diarrhea
/ Farms
/ Herpes viruses
/ Immune response
/ Immunity (Disease)
/ Immunity (passive)
/ Immunization
/ Immunology
/ Neutralization
/ passive immunity
/ Serology
/ serum neutralization and vaccines
/ Statistical analysis
/ Vaccines
/ Viruses
2024
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Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
by
Soriano, Sergio
, Gomes, Viviani
, Baccili, Camila Costa
, Pedroso, Natália Hettwer
, Marques, Raquel Sousa
, Flores, Eduardo Furtado
in
AGRONOMY
/ Animals
/ Antibodies
/ Cattle
/ Diarrhea
/ Farms
/ Herpes viruses
/ Immune response
/ Immunity (Disease)
/ Immunity (passive)
/ Immunization
/ Immunology
/ Neutralization
/ passive immunity
/ Serology
/ serum neutralization and vaccines
/ Statistical analysis
/ Vaccines
/ Viruses
2024
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Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
Journal Article
Anamnestic response against bovine viral diarrhea virus and bovine herpesvirus type 1 in young Holstein heifers vaccinated with four different commercial formulations
2024
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Overview
This study evaluated the vaccine-induced serological response after administering four commercial formulations containing Bovine Viral Diarrhea Virus (BVDV) type-1, BVDV-2, and Bovine Herpesvirus type 1 (BoHV-1) to young heifers with circulating maternal antibody titers. The study also determined the anamnestic response to vaccinations after the complete metabolization of maternal antibodies when the calves reached six months. Eighty-seven Holstein heifers were selected and randomly distributed into four experimental groups based on the vaccine administered. The four vaccine-based experimental groups were as follows: vaccine A (n = 22), vaccine B (n = 22), vaccine C (n = 24), and vaccine D (n = 19), given on the 60th, 90th, and 180th day of life, respectively. Virus-neutralization (VN) tests were performed at baseline (day 60) and 30 days after administering the second (day 120) and third doses (day 210). We analyzed the effect of vaccine group (P ≤ 0.001), day of vaccination (P ≤ 0.001), and group versus vaccine day interaction (P ≤ 0.001) for antibody titers produced against BVDV-1, BVDV-2, and BoHV-1 using the PROC MIXED method (Statistical Analysis System -SAS 9.4). Antibody titers against BVDV-1, BVDV-2, and BoHV-1 were similar at baseline and on day 60 of life. The mean antibody titers were constant and persisted against BVDV-1 in heifers immunized with vaccines A and C. Heifers immunized with vaccine A alone had a similar effect against BVDV-2. Regarding BoHV-1, the antibody titers decreased between days 60 and 210 in groups B, C, and D. The antibody titer for heifers in group A also decreased between days 60 and day 120, and an intense increase in titers was observed on day 210. After being immunized with formulations B, C, and D, the frequency of animals with titers above protective levels for BVDV-1, BVDV-2, and BoHV-1 was very low or null. Indicators of anamnestic response were observed in heifers vaccinated with formulation A only. Therefore, it can be concluded that passive immunity negatively interferes with antibody production after vaccination. RESUMO: O objetivo desse estudo foi avaliar a resposta sorológica induzida após vacinação com quatro formulações comerciais contendo o BVDV-1, BVDV-2 e BoHV-1 em novilhas jovens com títulos de anticorpos maternos circulantes, assim como analisar uma possível resposta anamnéstica em vacinações, após a completa metabolização dos anticorpos maternais aos seis meses de idade. Foram selecionadas 87 novilhas Holandesas, distribuídas aleatoriamente em quatro grupos experimentais de acordo com as vacinas: vacina A (n = 22), vacina B (n = 22), vacina C (n = 24) e vacina D (n = 19), aplicadas aos dias 60, 90 e 180 de vida. Testes de vírus-neutralização (VN) foram realizados no momento basal (D60) e 30 dias após a aplicação da 2ª dose (D120) e 3ª dose (D210). Observou-se efeito do grupo (P ≤ 0,001), dia da vacinação (P ≤ 0,001), e interação grupo versus dia (P ≤ 0,001) para os títulos de anticorpos produzidos contra o BVDV-1, BVDV-2 e BoHV-1, por meio do comando PROC MIXED (Statistical Analysis System, versão 9,4). Os títulos de anticorpos contra o BVDV-1, BVDV-2 e BoHV-1 eram semelhantes no momento basal aos 60 dias de vida. Os títulos médios de anticorpos foram constantes e persistentes contra o BVDV-1 nas novilhas imunizadas com as vacinas A e C, porém apenas a vacina A teve este mesmo perfil contra o BVDV-2. Em relação ao BoHV-1, os grupos B, C e D apresentaram queda nos títulos de anticorpos do D60 ao D210, enquanto as novilhas do grupo A apresentaram queda do D60 ao D120, com aumento intenso dos títulos no D210. A frequência de animais com títulos acima dos protetores contra o BVDV-1, BVDV-2 e BoHV-1 foram muito baixos ou nulos após as vacinações nos animais imunizados com as formulações B, C e D. Sugere-se que a imunidade passiva interferiu negativamente na indução de anticorpos pelas vacinas, observando-se indicadores de resposta anamnéstica apenas para as novilhas vacinadas com a formulação A.
Publisher
Universidade Federal de Santa Maria Centro de Ciencias Rurais,Universidade Federal de Santa Maria
Subject
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