2001
DOI: 10.2460/javma.2001.219.1739
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Health and performance of young dairy calves vaccinated with a modified-live Mannheimia haemolytica and Pasteurella multocida vaccine

Abstract: Results suggest that the M. haemolytica and P. multocida vaccine, given twice 2 weeks apart, was effective in increasing titers of antibodies against M. haemolytica in young dairy calves but did not improve calf performance or health.

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Cited by 21 publications
(10 citation statements)
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“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] One or more trials from five other studies were identified that utilized feedlot cattle in typical North American production settings, but they were weakened by lack of blinding, treatment being confounded by arrival group or other vaccine treatment, or significant loss-to-follow up and were discarded from the summary. [23][24][25][26][27] In addition, three terminal studies (five trials) investigated the use of commercially available vaccines in feedlot cattle with a pathogen-challenged disease model [14,28,29], three studies (five trials) utilized dairy or beef calves with naturally occurring disease to investigate effects of vaccination [27,30,31], and thirteen studies investigated the use of commercially available vaccines in dairy calves with an induced-disease model. [32][33][34][35][36][37][38][39][40][41][42][43][44] Studies were excluded from the review: if they did not report original data (primary study), if they did not include a non-vaccinated/placebo control group, if the outcome did not include an assessment of morbidity risk, mortality risk, or extent of lung involvement (e.g.…”
Section: Methodsmentioning
confidence: 99%
“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] One or more trials from five other studies were identified that utilized feedlot cattle in typical North American production settings, but they were weakened by lack of blinding, treatment being confounded by arrival group or other vaccine treatment, or significant loss-to-follow up and were discarded from the summary. [23][24][25][26][27] In addition, three terminal studies (five trials) investigated the use of commercially available vaccines in feedlot cattle with a pathogen-challenged disease model [14,28,29], three studies (five trials) utilized dairy or beef calves with naturally occurring disease to investigate effects of vaccination [27,30,31], and thirteen studies investigated the use of commercially available vaccines in dairy calves with an induced-disease model. [32][33][34][35][36][37][38][39][40][41][42][43][44] Studies were excluded from the review: if they did not report original data (primary study), if they did not include a non-vaccinated/placebo control group, if the outcome did not include an assessment of morbidity risk, mortality risk, or extent of lung involvement (e.g.…”
Section: Methodsmentioning
confidence: 99%
“…These include live M. haemolytica (2,6,7,9,11,19,21,33,50), killed M. haemolytica cells (10,20,22,23,52), components or fractions of M. haemolytica cells (17,24,27,28,35,49,(53)(54)(55), and commercial vaccines (57,58). While immunity to M. haemolytica appears to require anti-LKT and antisurface antigen antibodies (55), partial protection could be afforded to cattle experimentally vaccinated with M. haemolytica preparations that did not contain LKT (21,40).…”
Section: Discussionmentioning
confidence: 99%
“…SBD-1 is developmentally regulated in late gestation through the neonatal period with maximal expression in trachea, lung and rumen reached shortly after birth [19 -21]. Although SBD-1 appears to lack NF-kappa B responsive elements, [21][22][23][24][25][26][27] www.elsevier.com/locate/micpath SBD-1 expression is increased during infection with ovine parainfluenza virus type 3 (PI-3) [22]. SBD-2 is also developmentally regulated and expressed primarily in the alimentary tract [20,23]; however, only low levels of SBD-2 mRNA are present in lung relative to SBD-1 [20,23].…”
Section: Introductionmentioning
confidence: 99%
“…M. haemolytica can cause serious outbreaks of acute pneumonia in neonates, weaned and growing animals as well as adults [24]. Vaccination against M. haemolytica can enhance resistance to infection; however, these vaccines are not completely effective [25,26]. Experimentally, M. haemolytica activates NF-kappa B signaling [15,28] and enhances expression of two inducible bovine defensins, TAP and LAP in cattle [16 -18].…”
Section: Introductionmentioning
confidence: 99%