1981
DOI: 10.1016/0145-305x(81)90037-9
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Cross protection against fowl typhoid immunisation trials and humoral immune response

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Cited by 6 publications
(3 citation statements)
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“…A number of investigators have evaluated killed and modified live bacterins for FT. Studies on the use of 9R strain as live oral or injectable vaccine with or without oil adjuvants have reported variable results (60,61,62,102,126). Similarly, outer membrane proteins from S. Gallinarum have been reported to offer better protection than the 9R live vaccine in terms of clearance of the pathogenic strain from internal organs (25,27).…”
Section: Vaccinationmentioning
confidence: 99%
“…A number of investigators have evaluated killed and modified live bacterins for FT. Studies on the use of 9R strain as live oral or injectable vaccine with or without oil adjuvants have reported variable results (60,61,62,102,126). Similarly, outer membrane proteins from S. Gallinarum have been reported to offer better protection than the 9R live vaccine in terms of clearance of the pathogenic strain from internal organs (25,27).…”
Section: Vaccinationmentioning
confidence: 99%
“…Gupta and Mallick [49] reported better protection with adjuvanted 9R vaccine but their findings were soon contradicted [51]. Although requirement of oral dosing of sodium bicarbonate [48] before 9R vaccine delivery to birds was cumbersome, cross protection conferred by 9R vaccine against S. Typhimurium [95][96][97] was an added advantage. The 9R strain possesses some virulence [50,[98][99][100] therefore its use in young chicken of certain susceptible breeds is often a problem.…”
Section: Vaccines For Poultry Salmonellosismentioning
confidence: 99%
“…Además, la vacunación con la vacuna 9R puede en algunas ocasiones provocar una alta mortalidad en aves infectadas (53). Estudios sobre la utilización de la cepa 9R como vacuna oral viva o inyectable con o sin adyuvantes oleosos han sido realizados y se han informado variables resultados (53,54,55,56). Smith produjo dos tipos de vacunas vivas, una a partir de la cepa original o cepa lisa llamada 9S (S del inglés "smooth") y otra a partir de la cepa rugosa o cepa 9R (R del inglés "rough").…”
Section: Estudios De Adn Mediante Técnicas De Hibridación Demostraron Que El Génerounclassified