2003
DOI: 10.1016/s0378-1135(03)00152-4
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Duration of immunity in dogs vaccinated against leptospirosis with a bivalent inactivated vaccine

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Cited by 91 publications
(99 citation statements)
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“…However, titers >800 from vaccination are considered unlikely as postvaccinal titers wane rapidly ( 10 ) and most leptospiral bacterins available for dogs are bivalent for Canicola and Icterohaemorrhagiae, 2 serovars with low seropositivity in this study. Although the health and vaccination status of dogs from which sera were submitted was unknown, veterinarians most likely submitted samples for leptospirosis testing when they suspected leptospirosis based on clinical signs including vomiting, fever, lethargy, and anorexia.…”
Section: Discussionmentioning
confidence: 95%
“…However, titers >800 from vaccination are considered unlikely as postvaccinal titers wane rapidly ( 10 ) and most leptospiral bacterins available for dogs are bivalent for Canicola and Icterohaemorrhagiae, 2 serovars with low seropositivity in this study. Although the health and vaccination status of dogs from which sera were submitted was unknown, veterinarians most likely submitted samples for leptospirosis testing when they suspected leptospirosis based on clinical signs including vomiting, fever, lethargy, and anorexia.…”
Section: Discussionmentioning
confidence: 95%
“…MAT is the most commonly used serological diagnostic method, although it also detects antibodies produced by vaccination [13]; moreover, the duration of elevated antibody titer due to vaccination ranges from several weeks to four months [3,8,11]. Therefore, in aiming to prevent any influence of antibodies produced by vaccination, the inclusion criteria for dogs initially used in the present study included those dogs that had never received a Leptospira vaccine, or those that had not been inoculated with this vaccine in the 11 months preceding sampling.…”
Section: Discussionmentioning
confidence: 99%
“…No entanto, Greene et al (2006) aϐirmaram que os títulos vacinais contra os sorovares Canicola e Icterohaemorrhagiae podem exceder 1:800, no entanto não persistem por mais de três meses. Por outro lado Klaasen et al (2003) e Minke et al (2009) concluíram que a duração da imunidade induzida por uma vacina comercial bivalente contra os sorovares Canicola e Icterohaemorrhagiae perdura por um ano e protegem os cães do estado de portador renal e da sintomatologia clinica da doença. Destaca-se a preocupação quanto ao período de proteção pós-vacinal, que não pode ser padronizado em diferentes situações.…”
Section: Discussionunclassified
“…A dose protetora vacinal tem forte correlação com o título de anticorpos gerados pela imunização (Brasil 1995) e que há efetividade com títulos a partir de 1:100 (Almeida et al 1994). Gueguen et al (2000) e Klaasen et al (2003) aϐirmaram que os cães imunizados apresentam-se reagentes com resposta duradoura de um ano frente a desaϐios pós-vacinais. Outros pesquisadores acreditam que cães recém vacinados apresentam títulos sorológicos de até 1:400 (Ávila et al 1998).…”
Section: Introductionunclassified