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Suman Mahan

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Basima Al-Khedery; A Rick Alleman; Erik G Granquist; Anna M Lundgren; Suman M Mahan; Ulrike G Munderloh; Curtis M Nelson; Snorre Stuen; Anthony F Barbet
Structure of the type IV secretion system in different strains of Anaplasma phagocytophilum.
Anthony F Barbet; Barbara Byrom; Suman M Mahan
Diversity of Ehrlichia ruminantium major antigenic protein 1-2 in field isolates and infected sheep.
Amanda Loftis; Will K Reeves; John P Spurlock; Suman M Mahan; Danielle R Troughton; Gregory A Dasch; Michael Levin
Infection of a goat with a tick-transmitted Ehrlichia from Georgia, U.S.A., that is closely related to Ehrlichia ruminantium.

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2012: Basima Al-Khedery; A Rick Alleman; Erik G Granquist; Anna M Lundgren; Suman M Mahan; Ulrike G Munderloh; Curtis M Nelson; Snorre Stuen; Anthony F Barbet
Structure of the type IV secretion system in different strains of Anaplasma phagocytophilum.
BMC genomics 2012;13():678.
2009: Anthony F Barbet; Barbara Byrom; Suman M Mahan
Diversity of Ehrlichia ruminantium major antigenic protein 1-2 in field isolates and infected sheep.
Infection and immunity 2009;77(6):2304-10.
2006: Amanda Loftis; Will K Reeves; John P Spurlock; Suman M Mahan; Danielle R Troughton; Gregory A Dasch; Michael Levin
Infection of a goat with a tick-transmitted Ehrlichia from Georgia, U.S.A., that is closely related to Ehrlichia ruminantium.
Journal of vector ecology : journal of the Society for Vector Ecology 2006;31(2):213-23.
2006: Bigboy H Simbi; Michael V Bowie; Travis C McGuire; Anthony F Barbet; Suman M Mahan
Evaluation of E. ruminantium genes in DBA/2 mice as potential DNA vaccine candidates for control of heartwater.
Annals of the New York Academy of Sciences 2006;1078():424-37.
2005: Mike B Teglas; Erin Matern; Sarah Lein; Patrick Foley; Suman M Mahan; Janet Foley
Ticks and tick-borne disease in Guatemalan cattle and horses.
Veterinary parasitology 2005;131(1-2):119-27.
2004: Suman M Mahan; Bigboy H Simbi; Michael J Burridge
The pCS20 PCR assay for Ehrlichia ruminantium does not cross-react with the novel deer ehrlichial agent found in white-tailed deer in the United States of America.
The Onderstepoort journal of veterinary research 2004;71(2):99-105.
2003: Bigboy H Simbi; Trevor Peter; Michael J Burridge; Suman M Mahan
Comparing the detection of exposure to Ehrlichia ruminantium infection on a heartwater-endemic farm by the pCS20 polymerase chain reaction assay and an indirect MAP1-B enzyme linked immunosorbent assay.
The Onderstepoort journal of veterinary research 2003;70(3):231-5.
2003: Suman M Mahan; Anthony F Barbet; Michael J Burridge
Development of improved vaccines for heartwater.
Developments in biologicals 2003;114():137-45.
2002: Michael J Burridge; Leigh-Ann Simmons; Trevor Peter; Suman M Mahan
Control and eradication of chelonian tick infestations, with particular reference to vectors of heartwater.
Annals of the New York Academy of Sciences 2002;969():294-6.
2002: Michael J Burridge; Leigh-Ann Simmons; Trevor Peter; Suman M Mahan
Increasing risks of introduction of heartwater onto the American mainland associated with animal movements.
Annals of the New York Academy of Sciences 2002;969():269-74.
2002: nathan bryson; Ivan G Horak; Estelle H Venter; Suman M Mahan; Bigboy H Simbi; Trevor Peter
The prevalence of Cowdria ruminantium in free-living adult Amblyomma hebraeum collected at a communal grazing area and in 2 wildlife reserves in South Africa.
Journal of the South African Veterinary Association 2002;73(3):131-2.
2002: Michael J Burridge; Leigh-Ann Simmons; Bigboy H Simbi; Suman M Mahan; P E Fournier; D Raoult
Introduction of the exotic tick Amblyomma hebraeum into Florida on a human host.
The Journal of parasitology 2002;88(4):800-1.
2002: Shimon Harrus; A Rick Alleman; Hylton Bark; Suman M Mahan; Trevor Waner
Comparison of three enzyme-linked immunosorbant assays with the indirect immunofluorescent antibody test for the diagnosis of canine infection with Ehrlichia canis.
Veterinary microbiology 2002;86(4):361-8.
2002: Trevor Peter; Michael J Burridge; Suman M Mahan
Ehrlichia ruminantium infection (heartwater) in wild animals.
Trends in parasitology 2002;18(5):214-8.
2002: Michael J Burridge; Trevor Peter; Sandra A Allan; Suman M Mahan
Evaluation of safety and efficacy of acaricides for control of the African tortoise tick (Amblyomma marmoreum) on leopard tortoises (Geochelone pardalis).
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2002;33(1):52-7.
2002: Duncan M Mwangi; Declan J McKeever; John K Nyanjui; Anthony F Barbet; Suman M Mahan
Immunisation of cattle against heartwater by infection with Cowdria ruminantium elicits T lymphocytes that recognise major antigenic proteins 1 and 2 of the agent.
Veterinary immunology and immunopathology 2002;85(1-2):23-32.
2002: Aceme Nyika; Anthony F Barbet; Michael J Burridge; Suman M Mahan
DNA vaccination with map1 gene followed by protein boost augments protection against challenge with Cowdria ruminantium, the agent of heartwater.
Vaccine 2002;20(7-8):1215-25.
2001: Anthony F Barbet; W M Whitmire; S M Kamper; Bigboy H Simbi; R R Ganta; A L Moreland; Duncan M Mwangi; Travis C McGuire; Suman M Mahan
A subset of Cowdria ruminantium genes important for immune recognition and protection.
Gene 2001;275(2):287-98.
2001: Trevor Peter; Suman M Mahan; Michael J Burridge
Resistance of leopard tortoises and helmeted guineafowl to Cowdria ruminantium infection (heartwater).
Veterinary parasitology 2001;98(4):299-307.
2001: Suman M Mahan; G E Smith; D Kumbula; Michael J Burridge; Anthony F Barbet
Reduction in mortality from heartwater in cattle, sheep and goats exposed to field challenge using an inactivated vaccine.
Veterinary parasitology 2001;97(4):295-308.
2001: SM Semu; Trevor Peter; D Mukwedeya; Anthony F Barbet; F Jongejan; Suman M Mahan
Antibody responses to MAP 1B and other Cowdria ruminantium antigens are down regulated in cattle challenged with tick-transmitted heartwater.
Clinical and diagnostic laboratory immunology 2001;8(2):388-96.
2000: B Byrom; Anthony F Barbet; M Obwolo; Suman M Mahan
CD8(+) T cell knockout mice are less susceptible to Cowdria ruminantium infection than athymic, CD4(+) T cell knockout, and normal C57BL/6 mice.
Veterinary parasitology 2000;93(2):159-72.
2000: S Shompole; Fred R Rurangirwa; AN Wambugu; J Sitienei; Duncan M Mwangi; Anthony J Musoke; Suman M Mahan; CW Wells; Travis C McGuire
Monoclonal antibody binding to a surface-exposed epitope on Cowdria ruminantium that is conserved among eight strains.
Clinical and diagnostic laboratory immunology 2000;7(6):983-6.
2000: B Byrom; M Obwolo; Anthony F Barbet; Suman M Mahan
A polarized Th1 type immune response to Cowdria ruminantium infection is detected in immune DBA/2 mice.
The Journal of parasitology 2000;86(5):983-92.
2000: Michael J Burridge; Leigh-Ann Simmons; Bigboy H Simbi; Trevor Peter; Suman M Mahan
Evidence of Cowdria ruminantium infection (heartwater) in Amblyomma sparsum ticks found on tortoises imported into Florida.
The Journal of parasitology 2000;86(5):1135-6.
2000: Trevor Peter; Michael J Burridge; Suman M Mahan
Competence of the African tortoise tick, Amblyomma marmoreum (Acari: Ixodidae), as a vector of the agent of heartwater (Cowdria ruminantium).
The Journal of parasitology 2000;86(3):438-41.
2000: Trevor Peter; Anthony F Barbet; A Rick Alleman; Bigboy H Simbi; Michael J Burridge; Suman M Mahan
Detection of the agent of heartwater, Cowdria ruminantium, in Amblyomma ticks by PCR: validation and application of the assay to field ticks.
Journal of clinical microbiology 2000;38(4):1539-44.
2000: Suman M Mahan; Trevor Peter; Bigboy H Simbi; K Kocan; E Camus; Anthony F Barbet; Michael J Burridge
Comparison of efficacy of American and African Amblyomma ticks as vectors of heartwater (Cowdria ruminantium) infection by molecular analyses and transmission trials.
The Journal of parasitology 2000;86(1):44-9.
1999: Trevor Peter; BD Perry; CJ O'Callaghan; Graham Medley; G Mlambo; Anthony F Barbet; Suman M Mahan
Prevalence of Cowdria ruminantium infection in Amblyomma hebraeum ticks from heartwater-endemic areas of Zimbabwe.
Epidemiology and infection 1999;123(2):309-16.
1999: CJ O'Callaghan; Graham Medley; Trevor Peter; Suman M Mahan; BD Perry
Predicting the effect of vaccination on the transmission dynamics of heartwater (Cowdria ruminantium infection).
Preventive veterinary medicine 1999;42(1):17-38.
1999: Trevor Peter; nathan bryson; BD Perry; CJ O'Callaghan; Graham Medley; G E Smith; G Mlambo; Ivan G Horak; Michael J Burridge; Suman M Mahan
Cowdria ruminantium infection in ticks in the Kruger National Park.
The Veterinary record 1999;145(11):304-7.
1999: T A Martinez; MI Meltzer; BD Perry; Michael J Burridge; Suman M Mahan
The effect of subclinical experimental Cowdria ruminantium infection in ewes on the growth and milk consumption of pre-weaning lambs.
Preventive veterinary medicine 1999;41(2-3):105-18.
1999: T A Martinez; MI Meltzer; BD Perry; Michael J Burridge; Suman M Mahan
The effect of subclinical experimental Cowdria ruminantium infection on the health and reproductive performance of breeding ewes.
Preventive veterinary medicine 1999;41(2-3):89-103.
1999: Suman M Mahan; B Allsopp; K M Kocan; G H Palmer; F Jongejan
Vaccine strategies for Cowdria ruminantium infections and their application to other ehrlichial infections.
Parasitology today (Personal ed.) 1999;15(7):290-4.
1999: Philippe Totté; Albert Bensaid; Suman M Mahan; Dominique Martinez; Declan J McKeever
Immune responses to Cowdria ruminantium infections.
Parasitology today (Personal ed.) 1999;15(7):286-90.
1999: Trevor Peter; EC Anderson; Michael J Burridge; BD Perry; Suman M Mahan
Susceptibility and carrier status of impala, sable, and tsessebe for Cowdria ruminantium infection (heartwater).
The Journal of parasitology 1999;85(3):468-72.
1999: Carlos R Sulsona; Suman M Mahan; Anthony F Barbet
The map1 gene of Cowdria ruminantium is a member of a multigene family containing both conserved and variable genes.
Biochemical and biophysical research communications 1999;257(2):300-5.
1999: T Chamboko; AW Mukhebi; C J Callaghan; Trevor Peter; RL Kruska; Graham Medley; Suman M Mahan; BD Perry
The control of heartwater on large-scale commercial and smallholder farms in Zimbabwe.
Preventive veterinary medicine 1999;39(3):191-210.
1999: AW Mukhebi; T Chamboko; CJ O'Callaghan; Trevor Peter; RL Kruska; Graham Medley; Suman M Mahan; BD Perry
An assessment of the economic impact of heartwater (Cowdria ruminantium infection) and its control in Zimbabwe.
Preventive veterinary medicine 1999;39(3):173-89.
1999: Michael V Bowie; GR Reddy; SM Semu; Suman M Mahan; Anthony F Barbet
Potential value of major antigenic protein 2 for serological diagnosis of heartwater and related ehrlichial infections.
Clinical and diagnostic laboratory immunology 1999;6(2):209-15.
1998: Trevor Peter; BD Perry; CJ O'Callaghan; Graham Medley; W Shumba; W Madzima; Michael J Burridge; Suman M Mahan
Distributions of the vectors of heartwater, Amblyomma hebraeum and Amblyomma variegatum (Acari: Ixodidae), in Zimbabwe.
Experimental & applied acarology 1998;22(12):725-40.
1998: Trevor Peter; BD Perry; CJ O'Callaghan; Graham Medley; W Shumba; W Madzima; Michael J Burridge; Suman M Mahan
The distribution of heartwater in the highveld of Zimbabwe, 1980-1997.
The Onderstepoort journal of veterinary research 1998;65(3):177-87.
1998: Trevor Peter; EC Anderson; Michael J Burridge; Suman M Mahan
Demonstration of a carrier state for Cowdria ruminantium in wild ruminants from Africa.
Journal of wildlife diseases 1998;34(3):567-75.
1998: Suman M Mahan; D Kumbula; Michael J Burridge; Anthony F Barbet
The inactivated Cowdria ruminantium vaccine for heartwater protects against heterologous strains and against laboratory and field tick challenge.
Vaccine 1998;16(11-12):1203-11.
1998: Duncan M Mwangi; Declan J McKeever; John K Nyanjui; Anthony F Barbet; Suman M Mahan
Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle.
Annals of the New York Academy of Sciences 1998;849():372-4.
1998: Suman M Mahan; SM Semu; Trevor Peter; F Jongejan
Evaluation of the MAP-1B ELISA for cowdriosis with field sera from livestock in Zimbabwe.
Annals of the New York Academy of Sciences 1998;849():259-61.
1998: Philippe Totté; Declan J McKeever; F Jongejan; Anthony F Barbet; Suman M Mahan; Duncan M Mwangi; Albert Bensaid
Analysis of cellular responses to native and recombinant proteins of Cowdria ruminantium.
Annals of the New York Academy of Sciences 1998;849():155-60.
1998: Suman M Mahan; Trevor Peter; Bigboy H Simbi; Michael J Burridge
PCR detection of Cowdria ruminantium infection in ticks and animals from heartwater-endemic regions of Zimbabwe.
Annals of the New York Academy of Sciences 1998;849():85-7.
1998: GR Reddy; Carlos R Sulsona; Anthony F Barbet; Suman M Mahan; Michael J Burridge; A Rick Alleman
Molecular characterization of a 28 kDa surface antigen gene family of the tribe Ehrlichiae.
Biochemical and biophysical research communications 1998;247(3):636-43.
1998: Duncan M Mwangi; Suman M Mahan; John K Nyanjui; Evans L N Taracha; Declan J McKeever
Immunization of cattle by infection with Cowdria ruminantium elicits T lymphocytes that recognize autologous, infected endothelial cells and monocytes.
Infection and immunity 1998;66(5):1855-60.
1998: G E Smith; EC Anderson; Michael J Burridge; Trevor Peter; Suman M Mahan
Growth of Cowdria ruminantium in tissue culture endothelial cell lines from wild African mammals.
Journal of wildlife diseases 1998;34(2):297-304.
1998: Aceme Nyika; Suman M Mahan; Michael J Burridge; T C Mcguire; Fred R Rurangirwa; Anthony F Barbet
A DNA vaccine protects mice against the rickettsial agent Cowdria ruminantium.
Parasite immunology 1998;20(3):111-9.
1998: D T Savadye; P J Kelly; Suman M Mahan
Evidence to show that an agent that cross-reacts serologically with Cowdria ruminantium in Zimbabwe is transmitted by ticks.
Experimental & applied acarology 1998;22(2):111-22.
1998: Duncan M Mwangi; Declan J McKeever; Suman M Mahan
Cellular immune responses of cattle to Cowdria ruminantium.
Developments in biological standardization 1998;92():309-15.
1996: Sharon Deem; R A Noval; T Yonow; Trevor Peter; Suman M Mahan; Michael J Burridge
The epidemiology of heartwater: Establishment and maintenance of endemic stability.
Parasitology today (Personal ed.) 1996;12(10):402-5.
1996: J B Katz; Anthony F Barbet; Suman M Mahan; D Kumbula; J Mitchell Lockhart; M Kevin Keel; Jacqueline E Dawson; James G Olson; Sidney A Ewing
A recombinant antigen from the heartwater agent (Cowdria ruminatium) reactive with antibodies in some southeastern United States white-tailed deer (Odocoileus virginianus), but not cattle, sera.
Journal of wildlife diseases 1996;32(3):424-30.
1996: GR Reddy; C R Sulsona; R H Harrison; Suman M Mahan; Michael J Burridge; Anthony F Barbet
Sequence heterogeneity of the major antigenic protein 1 genes from Cowdria ruminantium isolates from different geographical areas.
Clinical and diagnostic laboratory immunology 1996;3(4):417-22.
1996: Suman M Mahan; M Sileghem; G E Smith; B Byrom
Neutralization of bovine concanavalin-A T cell supernatant-mediated anti-Cowdria ruminantium activity with antibodies specific to interferon gamma but not to tumor necrosis factor.
Parasite immunology 1996;18(6):317-24.
1996: L A Matthewman; P J Kelly; K Wray; N R Bryson; Andrew N Rycroft; D Raoult; Suman M Mahan
Antibodies in cat sera from southern Africa react with antigens of Ehrlichia canis.
The Veterinary record 1996;138(15):364-5.
1996: PJ Kelly; N Masanvi; H F Cadman; Suman M Mahan; Lorenza Beati; Didier Raoult
Serosurvey for Cowdria ruminantium, Coxiella burnetii, and Spotted fever group rickettsiae in ostriches (Struthio camelus) from Zimbabwe.
Avian diseases 1996;40(2):448-52.
1996: Sharon Deem; P L Donachie; R A Norval; Suman M Mahan
Colostrum from dams living in a heartwater-endemic area influences calfhood immunity to Cowdria ruminantium.
Veterinary parasitology 1996;61(1-2):133-44.
1996: Sharon Deem; R A Norval; P L Donachie; Suman M Mahan
Demonstration of vertical transmission of Cowdria ruminantium, the causative agent of heartwater, from cows to their calves.
Veterinary parasitology 1996;61(1-2):119-32.
1995: Suman M Mahan; Trevor Peter; SM Semu; B H Simbi; R A Norval; Anthony F Barbet
Laboratory reared Amblyomma hebraeum and Amblyomma variegatum ticks differ in their susceptibility to infection with Cowdria ruminantium.
Epidemiology and infection 1995;115(2):345-53.
1995: R A Norval; P L Donachie; M I Meltzer; Sharon Deem; Suman M Mahan
The relationship between tick (Amblyomma hebraeum) infestation and immunity to heartwater (Cowdria ruminantium infection) in calves in Zimbabwe.
Veterinary parasitology 1995;58(4):335-52.
1995: Suman M Mahan; H R Andrew; N Tebele; Michael J Burridge; Anthony F Barbet
Immunisation of sheep against heartwater with inactivated Cowdria ruminantium.
Research in veterinary science 1995;58(1):46-9.
1995: Trevor Peter; Sharon Deem; Anthony F Barbet; R A Norval; B H Simbi; P J Kelly; Suman M Mahan
Development and evaluation of PCR assay for detection of low levels of Cowdria ruminantium infection in Amblyomma ticks not detected by DNA probe.
Journal of clinical microbiology 1995;33(1):166-72.
1994: Anthony F Barbet; SM Semu; N Chigagure; PJ Kelly; F Jongejan; Suman M Mahan
Size variation of the major immunodominant protein of Cowdria ruminantium.
Clinical and diagnostic laboratory immunology 1994;1(6):744-6.
1994: Suman M Mahan; Travis C McGuire; SM Semu; M V Bowie; F Jongejan; Fred R Rurangirwa; Anthony F Barbet
Molecular cloning of a gene encoding the immunogenic 21 kDa protein of Cowdria ruminantium.
Microbiology (Reading, England) 1994;140 ( Pt 8)():2135-42.
1994: L A Matthewman; PJ Kelly; Suman M Mahan; SM Semu; Peter R Mason; D Bruce; P Brouqui; Didier Raoult
Reactivity of sera collected from dogs in Mutare, Zimbabwe, to antigens of Ehrlichia canis and Cowdria ruminantium.
The Veterinary record 1994;134(19):498-9.
1994: PJ Kelly; L A Matthewman; Suman M Mahan; SM Semu; Trevor Peter; Peter R Mason; P Brouqui; Didier Raoult
Serological evidence for antigenic relationships between Ehrlichia canis and Cowdria ruminantium.
Research in veterinary science 1994;56(2):170-4.
1994: Suman M Mahan; G E Smith; B Byrom
Conconavalin A-stimulated bovine T-cell supernatants inhibit growth of Cowdria ruminantium in bovine endothelial cells in vitro.
Infection and immunity 1994;62(2):747-50.
1993: Suman M Mahan; N Tebele; D Mukwedeya; SM Semu; C B Nyathi; L A Wassink; PJ Kelly; Trevor Peter; Anthony F Barbet
An immunoblotting diagnostic assay for heartwater based on the immunodominant 32-kilodalton protein of Cowdria ruminantium detects false positives in field sera.
Journal of clinical microbiology 1993;31(10):2729-37.
1993: L A Matthewman; PJ Kelly; Suman M Mahan; D Semu; M Tagwira; P A Bobade; P Brouqui; Peter R Mason; Didier Raoult
Western blot and indirect fluorescent antibody testing for antibodies reactive with Ehrlichia canis in sera from apparently healthy dogs in Zimbabwe.
Journal of the South African Veterinary Association 1993;64(3):111-5.
1993: C E Yunker; Suman M Mahan; Suryakant D Waghela; Travis C McGuire; Fred R Rurangirwa; Anthony F Barbet; L A Wassink
Detection of Cowdria ruminantium by means of a DNA probe, pCS20 in infected bont ticks, Amblyomma hebraeum, the major vector of heartwater in southern Africa.
Epidemiology and infection 1993;110(1):95-104.
1993: B Byrom; Suman M Mahan; Anthony F Barbet
The development of antibody to Cowdria ruminantium in mice and its role in heartwater disease.
Revue d'élevage et de médecine vétérinaire des pays tropicaux 1993;46(1-2):197-201.
1992: SM Semu; Suman M Mahan; C E Yunker; Michael J Burridge
Development and persistence of Cowdria ruminantium specific antibodies following experimental infection of cattle, as detected by the indirect fluorescent antibody test.
Veterinary immunology and immunopathology 1992;33(4):339-52.
1992: John B Dame; Suman M Mahan; Charles A Yowell
Phylogenetic relationship of Cowdria ruminantium, agent of heartwater, to Anaplasma marginale and other members of the order Rickettsiales determined on the basis of 16S rRNA sequence.
International journal of systematic bacteriology 1992;42(2):270-4.
1992: Suman M Mahan; Suryakant D Waghela; Travis C McGuire; Fred R Rurangirwa; L A Wassink; Anthony F Barbet
A cloned DNA probe for Cowdria ruminantium hybridizes with eight heartwater strains and detects infected sheep.
Journal of clinical microbiology 1992;30(4):981-6.
1991: Suryakant D Waghela; Fred R Rurangirwa; Suman M Mahan; C E Yunker; Timothy B Crawford; Anthony F Barbet; Michael J Burridge; Travis C McGuire
A cloned DNA probe identifies Cowdria ruminantium in Amblyomma variegatum ticks.
Journal of clinical microbiology 1991;29(11):2571-7.