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      Effect of a booster-dose of rabies vaccine on the duration of virus neutralizing antibody titers in bovines Translated title: Efeito de uma dose de reforço da vacina anti-rábica sobre a duração de títulos de anticorpos neutralizantes do vírus, em bovinos

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          Abstract

          Humoral immune response using inactivated rabies vaccine was studied in 35 nelore cross-bred bovines of western region of São Paulo state. Ninety days after vaccination, 13 (92.8%) animals presented titers 30.5IU/ml, through mouse neutralization test. After 180 days, 9 (64.3%) sera showed titers 30.5IU/ml, after 270 days, only one (7.1%) showed a titer of 0.51IU/ml, and after 360 days, all animals showed titers < 0.5IU/ml. Group of animals receiving booster dose 30 days after vaccination presented, two months after, all with titers > 0.5IU/ml. At 180 days, 17 (80.9%) sera presented titers > 0.5IU/ml; at 270 days, 15 (71.4%), with titers 30.5IU/ml and at 360 days, 4 (19.0%), with titers 30.5IU/ml. Booster-dose ensured high levels of neutralizing antibodies for at least three months, and 240 days after revaccination, 71.4% of animals were found with titers 30.5IU/ml.

          Translated abstract

          A resposta humoral com vacina anti-rábica inativada foi estudada em 35 bovinos mestiços de raça nelore, na região oeste do estado de São Paulo. Noventa dias após a primo-vacinação, 13 (92,8%) animais apresentaram títulos 30,5UI/ml, através da prova de soroneutralização em camundongos. Após 180 dias, 9 (64,3%) soros evidenciaram títulos 30,5UI/ml; após 270 dias, apenas 1 (7,1%) soro demonstrou título = 0,51 UI/ml. O grupo que recebeu dose de reforço 30 dias após primo-vacinação apresentou, dois meses depois, 21 animais com títulos > 0,5UI/ml. Aos 180 dias, 17 (80,9%) soros apresentaram títulos > 0,5UI/ml; aos 270 dias, 15 (71,4%) soros com títulos 30,5UI/ml; aos 360 dias, 4 (19,0%) com títulos 30,5UI/ml. O reforço proporcionou nível elevado de anticorpos, por um período de três meses ou mais e, 240 dias após a revacinação, 71,4% dos animais apresentou títulos 30,5UI/ml.

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          Most cited references17

          • Record: found
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          Propagation of Rabies Virus in Pig Kidney Cell Culture.

          M Abelseth (1964)
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            • Record: found
            • Abstract: not found
            • Article: not found

            An introduction to veterinary immunology

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              • Record: found
              • Abstract: not found
              • Article: not found

              Epidemiology of paralytic bovine rabies and bat rabies.

              P Acha (1967)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rsbmt
                Revista da Sociedade Brasileira de Medicina Tropical
                Rev. Soc. Bras. Med. Trop.
                Sociedade Brasileira de Medicina Tropical - SBMT (Uberaba )
                1678-9849
                August 1998
                : 31
                : 4
                : 367-371
                Affiliations
                [1 ] Universidade do Oeste Paulista Brazil
                Article
                S0037-86821998000400006
                10.1590/S0037-86821998000400006
                54a34cab-11d2-4961-bf5c-f06ac100be9b

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0037-8682&lng=en
                Categories
                TROPICAL MEDICINE

                Infectious disease & Microbiology
                Vaccination,Rabies,Bovine,Booster,Neutralizing antibodies,Vacinação,Raiva,Bovinos,Dose de reforço,Anticorpos neutralizantes

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