PMID: 9193946May 1, 1997Paper

Analysis of immunological cross-protection and sensitivities to anticoccidial drugs among five geographical and temporal strains of Eimeria maxima

International Journal for Parasitology
A G MartinM A Fernando

Abstract

Two laboratory strains (USDA strain No. 68 isolated from the eastern shore of Maryland 15 years ago and a University of Guelph strain isolated from an Ontario broiler house 23 years ago) and 3 recent field strains of Eimeria maxima [isolated in Maryland (MD), North Carolina (NC) and Florida (FL)] were tested for their ability to induce cross-protective immunity and their sensitivities to a variety of anticoccidial compounds. To assess immunological cross-protection, 1-day-old chicks were inoculated and subsequently challenged at 10 days of age, testing all possible combinations of initial inoculating (immunizing) and subsequent challenge strain. Six days post-challenge, chicks were killed and weight gains and lesion scores were determined and compared to sham inoculated and challenged, and sham challenged age-matched controls. The 2 laboratory strains and the NC strain were fully cross-protective against each other by both these measures. In contrast, the MD and FL strains induced complete protection only against the homologous strain. Reciprocally, no other strains protected chicks completely against the FL and MD strains. Drug sensitivity studies using 10 different anticoccidial formulations at prescribed drug levels showed s...Continue Reading

Citations

Jul 2, 2005·Parasitology Research·Patricia C AllenKatarzyna B Miska
Jan 13, 2010·Parasitology Research·Anke SühwoldAnja Taubert
Apr 12, 2002·International Journal for Parasitology·H D ChapmanR B Williams
Apr 29, 1998·International Journal for Parasitology·J R BartaH D Danforth
Oct 25, 2002·Avian Pathology : Journal of the W.V.P.A·R B Williams
Sep 9, 2005·Avian Pathology : Journal of the W.V.P.A·B E SchnitzlerM W Shirley
Mar 18, 2010·The Journal of Veterinary Medical Science·Byung H LeeWongi Min
Feb 19, 2014·Parasitology·David M Witcombe, Nicholas C Smith
Apr 3, 2012·Molecular and Biochemical Parasitology·Damer P BlakeKiew-Lian Wan
Jan 17, 2007·Vaccine·Martin W ShirleyDamer P Blake
Jul 18, 2006·Parasite Immunology·D P BlakeA L Smith
Dec 16, 2011·Veterinary Parasitology·Masood AkhtarMuhammad Irfan Anwar
Mar 19, 2015·BioMed Research International·Rosa Estela Quiroz-Castañeda, Edgar Dantán-González
Jan 15, 2019·Parasitology Research·Shafiya Imtiaz RafiqiP S Banerjee
Dec 1, 1999·Avian Pathology : Journal of the W.V.P.A·Beate E Schnitzler, Martin W Shirley

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