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Sidney Ewing

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Kelly E Allen; Sidney A Ewing; Eileen M Johnson; Roger J Panciera; Mason V Reichard; Michael J Yabsley; Susan E Little
Novel Hepatozoon in vertebrates from the southern United States.
Susan E Little; Thomas P O'Connor; Julie Hempstead; Jill Saucier; Mason V Reichard; Katrina Meinkoth; James H Meinkoth; Blaine Andrews; Steve Ullom; Sidney A Ewing; Ramaswamy Chandrashekar
Ehrlichia ewingii infection and exposure rates in dogs from the southcentral United States.
Katherine M Kocan; José de la Fuente; Edmour F Blouin; Johann F Coetzee; Sidney A Ewing
The natural history of Anaplasma marginale.

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All Publications

2011: Kelly E Allen; Sidney A Ewing; Eileen M Johnson; Roger J Panciera; Mason V Reichard; Michael J Yabsley; Susan E Little
Novel Hepatozoon in vertebrates from the southern United States.
The Journal of parasitology 2011;97(4):648-53.
2010: Susan E Little; Thomas P O'Connor; Julie Hempstead; Jill Saucier; Mason V Reichard; Katrina Meinkoth; James H Meinkoth; Blaine Andrews; Steve Ullom; Sidney A Ewing; Ramaswamy Chandrashekar
Ehrlichia ewingii infection and exposure rates in dogs from the southcentral United States.
Veterinary parasitology 2010;172(3-4):355-60.
2010: Katherine M Kocan; José de la Fuente; Edmour F Blouin; Johann F Coetzee; Sidney A Ewing
The natural history of Anaplasma marginale.
Veterinary parasitology 2010;167(2-4):95-107.
2009: E M Johnson; Roger J Panciera; K E Allen; M E Sheets; J D Beal; Sidney A Ewing; S E Little
Alternate pathway of infection with Hepatozoon americanum and the epidemiologic importance of predation.
Journal of veterinary internal medicine / American College of Veterinary Internal Medicine 2009;23(6):1315-8.
2009: Eileen M Johnson; Kelly E Allen; Roger J Panciera; Sidney A Ewing; Susan E Little
Experimental transmission of Hepatozoon americanum to New Zealand White rabbits (Oryctolagus cuniculus) and infectivity of cystozoites for a dog.
Veterinary parasitology 2009;164(2-4):162-6.
2009: Susan E Little; Kelly E Allen; Eileen M Johnson; Roger J Panciera; Mason V Reichard; Sidney A Ewing
New developments in canine hepatozoonosis in North America: a review.
Parasites & vectors 2009;2 Suppl 1():S5.
2008: Eileen M Johnson; Kelly E Allen; Roger J Panciera; Susan E Little; Sidney A Ewing
Infectivity of Hepatozoon americanum cystozoites for a dog.
Veterinary parasitology 2008;154(1-2):148-50.
2008: Eileen M Johnson; Kelly E Allen; Melanie A Breshears; Roger J Panciera; Susan E Little; Sidney A Ewing
Experimental transmission of Hepatozoon americanum to rodents.
Veterinary parasitology 2008;151(2-4):164-9.
2007: Eileen M Johnson; Kelly E Allen; Roger J Panciera; Sidney A Ewing; Susan E Little; Mason V Reichard
Field survey of rodents for Hepatozoon infections in an endemic focus of American canine hepatozoonosis.
Veterinary parasitology 2007;150(1-2):27-32.
2005: Connie Cummings; Roger J Panciera; Katherine M Kocan; John S Mathew; Sidney A Ewing
Characterization of stages of Hepatozoon americanum and of parasitized canine host cells.
Veterinary pathology 2005;42(6):788-96.
2005: Jennifer Jane Garrett; A Alan Kocan; Mason V Reichard; Roger J Panciera; Robert J Bahr; Sidney A Ewing
Experimental infection of adult and juvenile coyotes with domestic dog and wild coyote isolates of Hepatozoon americanum (Apicomplexa: Adeleorina).
Journal of wildlife diseases 2005;41(3):588-92.
2005: Mason V Reichard; A Alan Kocan; Ronald A Van den Bussche; RW Barker; John H Wyckoff; Sidney A Ewing
Sequence variation of the ribosomal DNA second internal transcribed spacer region in two spatially-distinct populations of Amblyomma americanum (L.) (Acari: Ixodidae).
The Journal of parasitology 2005;91(2):260-3.
2004: RW Barker; A Alan Kocan; Sidney A Ewing; RP Wettemann; Mark E Payton
Occurrence of the Gulf Coast tick (Acari: Ixodidae) on wild and domestic mammals in north-central Oklahoma.
Journal of medical entomology 2004;41(2):170-8.
2003: Sidney A Ewing; Roger J Panciera
American canine hepatozoonosis.
Clinical microbiology reviews 2003;16(4):688-97.
2003: Roger J Panciera; Sidney A Ewing
American canine hepatozoonosis.
Animal health research reviews / Conference of Research Workers in Animal Diseases 2003;4(1):27-34.
2003: Sidney A Ewing; Roger J Panciera; John S Mathew
Persistence of Hepatozoon americanum (Apicomplexa: Adeleorina) in a naturally infected dog.
The Journal of parasitology 2003;89(3):611-3.
2003: Gad Baneth; John S Mathew; Varda Shkap; Douglass K Macintire; John R Barta; Sidney A Ewing
Canine hepatozoonosis: two disease syndromes caused by separate Hepatozoon spp.
Trends in parasitology 2003;19(1):27-31.
2002: Sidney A Ewing; John S Mathew; Roger J Panciera
Transmission of Hepatozoon americanum (Apicomplexa: Adeleorina) by ixodids (Acari: Ixodidae).
Journal of medical entomology 2002;39(4):631-4.
2002: Sidney A Ewing; J G DuBois; John S Mathew; Roger J Panciera
Larval Gulf Coast ticks (Amblyomma maculatum) [Acari: Ixodidae] as host for Hepatozoon americanum [Apicomplexa: Adeleorina].
Veterinary parasitology 2002;103(1-2):43-51.
2001: Jacqueline E Dawson; Christopher D Paddock; CK Warner; Patricia W Greer; J H Bartlett; Sidney A Ewing; Ulrike G Munderloh; Sherif R Zaki
Tissue diagnosis of Ehrlichia chaffeensis in patients with fatal ehrlichiosis by use of immunohistochemistry, in situ hybridization, and polymerase chain reaction.
The American journal of tropical medicine and hygiene 2001;65(5):603-9.
2001: Roger J Panciera; John S Mathew; Connie Cummings; JC Duffy; Sidney A Ewing; A Alan Kocan
Comparison of tissue stages of Hepatozoon americanum in the dog using immunohistochemical and routine histologic methods.
Veterinary pathology 2001;38(4):422-6.
2001: John S Mathew; Jeremiah T Saliki; Sidney A Ewing; Terry W Lehenbauer; Roger J Panciera; Jerry R Malayer; Connie Cummings; A Alan Kocan
An indirect enzyme-linked immunosorbent assay for diagnosis of American canine hepatozoonosis.
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2001;13(1):17-21.
2001: Roger J Panciera; Sidney A Ewing; Anthony W Confer
Ocular histopathology of Ehrlichial infections in the dog.
Veterinary pathology 2001;38(1):43-6.
2000: John S Mathew; Sidney A Ewing; Jerry R Malayer; JC Fox; Katherine M Kocan
Efficacy of a modified polymerase chain reaction assay for detection of Ehrlichia canis infection.
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2000;12(5):456-9.
2000: A Alan Kocan; G C Levesque; Lisa C Whitworth; GL Murphy; Sidney A Ewing; RW Barker
Naturally occurring Ehrlichia chaffeensis infection in coyotes from Oklahoma.
Emerging infectious diseases 2000;6(5):477-80.
2000: A Alan Kocan; Sidney A Ewing; David E Stallknecht; GL Murphy; S Little; Lisa C Whitworth; RW Barker
Attempted transmission of Ehrlichia chaffeensis among white-tailed deer by Amblyomma maculatum.
Journal of wildlife diseases 2000;36(3):592-4.
2000: Roger J Panciera; John S Mathew; Sidney A Ewing; Connie Cummings; Wm Tod Drost; A Alan Kocan
Skeletal lesions of canine hepatozoonosis caused by Hepatozoon americanum.
Veterinary pathology 2000;37(3):225-30.
2000: John S Mathew; Ronald A Van den Bussche; Sidney A Ewing; Jerry R Malayer; B R Latha; Roger J Panciera
Phylogenetic relationships of Hepatozoon (Apicomplexa: Adeleorina) based on molecular, morphologic, and life-cycle characters.
The Journal of parasitology 2000;86(2):366-72.
2000: Sidney A Ewing; Roger J Panciera; John S Mathew; Connie Cummings; A Alan Kocan
American canine hepatozoonosis. An emerging disease in the New World.
Annals of the New York Academy of Sciences 2000;916():81-92.
2000: A Alan Kocan; Connie Cummings; Roger J Panciera; John S Mathew; Sidney A Ewing; RW Barker
Naturally occurring and experimentally transmitted Hepatozoon americanum in coyotes from Oklahoma.
Journal of wildlife diseases 2000;36(1):149-53.
1999: John S Mathew; Sidney A Ewing; Roger J Panciera; Katherine M Kocan
Sporogonic development of Hepatozoon americanum (Apicomplexa) in its definitive host, Amblyomma maculatum (Acarina).
The Journal of parasitology 1999;85(6):1023-31.
1999: Roger J Panciera; Sidney A Ewing; John S Mathew; Terry W Lehenbauer; Connie Cummings; JP Woods
Canine hepatozoonosis: comparison of lesions and parasites in skeletal muscle of dogs experimentally or naturally infected with Hepatozoon americanum.
Veterinary parasitology 1999;82(4):261-72.
1999: A Alan Kocan; Melanie A Breshears; C Cummings; Roger J Panciera; Sidney A Ewing; RW Barker
Naturally occurring hepatozoonosis in coyotes from Oklahoma.
Journal of wildlife diseases 1999;35(1):86-9.
1998: John S Mathew; Sidney A Ewing; Roger J Panciera; JP Woods
Experimental transmission of Hepatozoon americanum Vincent-Johnson et al., 1997 to dogs by the Gulf Coast tick, Amblyomma maculatum Koch.
Veterinary parasitology 1998;80(1):1-14.
1998: GL Murphy; Sidney A Ewing; Lisa C Whitworth; JC Fox; A Alan Kocan
A molecular and serologic survey of Ehrlichia canis, E. chaffeensis, and E. ewingii in dogs and ticks from Oklahoma.
Veterinary parasitology 1998;79(4):325-39.
1998: James H Meinkoth; Sidney A Ewing; Rick L Cowell; Jacqueline E Dawson; CK Warner; John S Mathew; Mary H Bowles; A E Thiessen; Roger J Panciera; C Fox
Morphologic and molecular evidence of a dual species ehrlichial infection in a dog presenting with inflammatory central nervous system disease.
Journal of veterinary internal medicine / American College of Veterinary Internal Medicine 1998;12(5):389-93.
1998: Roger J Panciera; Sidney A Ewing; John S Mathew; Connie Cummings; A Alan Kocan; Melanie A Breshears; JC Fox
Observations on tissue stages of Hepatozoon americanum in 19 naturally infected dogs.
Veterinary parasitology 1998;78(4):265-76.
1998: E M Johnson; Sidney A Ewing; RW Barker; JC Fox; D W Crow; Katherine M Kocan
Experimental transmission of Ehrlichia canis (Rickettsiales: Ehrlichieae) by Dermacentor variabilis (Acari: Ixodidae).
Veterinary parasitology 1998;74(2-4):277-88.
1997: Sidney A Ewing; Jacqueline E Dawson; Roger J Panciera; John S Mathew; K W Pratt; P Katavolos; Sam R Telford
Dogs infected with a human granulocytotropic Ehrlichia spp. (Rickettsiales: Ehrlichieae).
Journal of medical entomology 1997;34(6):710-8.
1997: Jacqueline E Dawson; CK Warner; Sidney A Ewing; Sam R Telford; Richard E Corstvet; R Brennan; James G Olson
Fingerprinting of Ehrlichia species by repetitive element polymerase chain reaction.
The American journal of tropical medicine and hygiene 1997;57(1):109-14.
1997: Sidney A Ewing; Jacqueline E Dawson; John S Mathew; RW Barker; K W Pratt; Sam R Telford
Attempted transmission of human granulocytotropic Ehrlichia (HGE) by Amblyomma americanum and Amblyomma maculatum.
Veterinary parasitology 1997;70(1-3):183-90.
1997: Sidney A Ewing; Roger J Panciera; Katherine M Kocan; NL Ge; Ronald D Welsh; R W Olson; RW Barker; L E Rice
A winter outbreak of anaplasmosis in a nonendemic area of Oklahoma: a possible role for Dermacentor albipictus.
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 1997;9(2):206-8.
1997: NL Ge; Katherine M Kocan; Sidney A Ewing; Edmour F Blouin; W L Edwards; GL Murphy; L J Dawson
Use of a nonradioactive DNA probe for detection of Anaplasma marginale infection in field cattle: comparison with complement fixation serology and microscopic examination.
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 1997;9(1):39-43.
1997: John S Mathew; Sidney A Ewing; GL Murphy; Katherine M Kocan; Richard E Corstvet; JC Fox
Characterization of a new isolate of Ehrlichia platys (Order Rickettsiales) using electron microscopy and polymerase chain reaction.
Veterinary parasitology 1997;68(1-2):1-10.
1996: John S Mathew; Sidney A Ewing; RW Barker; JC Fox; Jacqueline E Dawson; CK Warner; GL Murphy; Katherine M Kocan
Attempted transmission of Ehrlichia canis by Rhipicephalus sanguineus after passage in cell culture.
American journal of veterinary research 1996;57(11):1594-8.
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: Jacqueline E Dawson; CK Warner; V Baker; Sidney A Ewing; David E Stallknecht; William R Davidson; A Alan Kocan; J Mitchell Lockhart; James G Olson
Ehrlichia-like 16S rDNA sequence from wild white-tailed deer (Odocoileus virginianus).
The Journal of parasitology 1996;82(1):52-8.
1995: R J Morton; Roger J Panciera; Robert W Fulton; G H Frank; Sidney A Ewing; J T Homer; Anthony W Confer
Vaccination of cattle with outer membrane protein-enriched fractions of Pasteurella haemolytica and resistance against experimental challenge exposure.
American journal of veterinary research 1995;56(7):875-9.
1995: Sidney A Ewing; Jacqueline E Dawson; A Alan Kocan; RW Barker; CK Warner; Roger J Panciera; JC Fox; Katherine M Kocan; Edmour F Blouin
Experimental transmission of Ehrlichia chaffeensis (Rickettsiales: Ehrlichieae) among white-tailed deer by Amblyomma americanum (Acari: Ixodidae).
Journal of medical entomology 1995;32(3):368-74.
1993: Roger J Panciera; Sidney A Ewing; E M Johnson; B J Johnson; D L Whitenack
Eosinophilic mediastinitis, myositis, pleuritis, and pneumonia of cattle associated with migration of first-instar larvae of Hypoderma lineatum.
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 1993;5(2):226-31.
1993: Edmour F Blouin; James T Blankemeyer; Katherine M Kocan; Sidney A Ewing
Effect of 4-bromo-calcium ionophore A23187 on release of Anaplasma marginale from bovine erythrocytes in vitro.
American journal of veterinary research 1993;54(2):263-9.
1993: C S Elangbam; Charles W Qualls; Sidney A Ewing; Robert Lochmiller
Cryptosporidiosis in a cotton rat (Sigmodon hispidus).
Journal of wildlife diseases 1993;29(1):161-4.
1993: Katherine M Kocan; W L Goff; D Stiller; W Edwards; Sidney A Ewing; P Larry Claypool; Travis C McGuire; J A Hair; S J Barron
Development of Anaplasma marginale in salivary glands of male Dermacentor andersoni.
American journal of veterinary research 1993;54(1):107-12.
1992: Jacqueline E Dawson; Sidney A Ewing
Susceptibility of dogs to infection with Ehrlichia chaffeensis, causative agent of human ehrlichiosis.
American journal of veterinary research 1992;53(8):1322-7.
1992: Katherine M Kocan; W L Goff; D Stiller; P Larry Claypool; W Edwards; Sidney A Ewing; J A Hair; S J Barron
Persistence of Anaplasma marginale (Rickettsiales: Anaplasmataceae) in male Dermacentor andersoni (Acari: Ixodidae) transferred successively from infected to susceptible calves.
Journal of medical entomology 1992;29(4):657-68.
1992: Edmour F Blouin; Katherine M Kocan; Sidney A Ewing
Preliminary attempts to infect bovine erythrocytes in vitro with a tick-derived stage of Anaplasma marginale.
Annals of the New York Academy of Sciences 1992;653():72-7.
1992: Katherine M Kocan; D Stiller; W L Goff; P Larry Claypool; W Edwards; Sidney A Ewing; Travis C McGuire; J A Hair; S J Barron
Development of Anaplasma marginale in male Dermacentor andersoni transferred from parasitemic to susceptible cattle.
American journal of veterinary research 1992;53(4):499-507.
1991: J R Harkess; Sidney A Ewing; T Brumit; C R Mettry
Ehrlichiosis in children.
Pediatrics 1991;87(2):199-203.
1990: J R Harkess; D Stucky; Sidney A Ewing
Neurologic abnormalities in a patient with human ehrlichiosis.
Southern medical journal 1990;83(11):1341-3.
1990: Sidney A Ewing; J R Harkess; Katherine M Kocan; RW Barker; JC Fox; R D Tyler; Rick L Cowell; R B Morton
Failure to transmit Ehrlichia canis (Rickettsiales: Ehrlichieae) with Otobius megnini (Acari: Argasidae).
Journal of medical entomology 1990;27(5):803-6.
1990: Katherine M Kocan; T N Yellin; P Larry Claypool; S J Barron; Sidney A Ewing; J A Hair
Development and infectivity of Anaplasma marginale in Dermacentor andersoni nymphs.
American journal of veterinary research 1990;51(8):1292-4.
1990: O S Anziani; Sidney A Ewing; RW Barker
Experimental transmission of a granulocytic form of the tribe Ehrlichieae by Dermacentor variabilis and Amblyomma americanum to dogs.
American journal of veterinary research 1990;51(6):929-31.
1990: B W Rohrbach; J R Harkess; Sidney A Ewing; J Kudlac; G L McKee; GR Istre
Epidemiologic and clinical characteristics of persons with serologic evidence of E. canis infection.
American journal of public health 1990;80(4):442-5.
1990: Katherine M Kocan; R W Stich; P Larry Claypool; Sidney A Ewing; J A Hair; S J Barron
Intermediate site of development of Anaplasma marginale in feeding adult Dermacentor andersoni ticks that were infected as nymphs.
American journal of veterinary research 1990;51(1):128-32.
1989: D Stiller; Katherine M Kocan; W Edwards; Sidney A Ewing; J A Barron
Detection of colonies of Anaplasma marginale in salivary glands of three Dermacentor spp infected as nymphs or adults.
American journal of veterinary research 1989;50(8):1381-5.
1989: R W Stich; Katherine M Kocan; Guy H Palmer; Sidney A Ewing; J A Hair; S J Barron
Transstadial and attempted transovarial transmission of Anaplasma marginale by Dermacentor variabilis.
American journal of veterinary research 1989;50(8):1377-80.
1989: J R Harkess; Sidney A Ewing; J M Crutcher; J Kudlac; G McKee; GR Istre
Human ehrlichiosis in Oklahoma.
The Journal of infectious diseases 1989;159(3):576-9.
1989: J S Afolabi; Sidney A Ewing; R E Wright; J C Wright
Culex erraticus: a host for Dirofilaria immitis.
Journal of the American Mosquito Control Association 1989;5(1):109.
1989: Sidney A Ewing; J J Petersen; J S Afolabi
Prevalence of parasitism of adult Aedes vexans by a mermithid (Nematoda: Mermithidae) in Oklahoma.
Journal of the American Mosquito Control Association 1989;5(1):106-8.
1988: Katherine M Kocan; K B Wickwire; Sidney A Ewing; J A Hair; S J Barron
Preliminary studies of the development of Anaplasma marginale in salivary glands of adult, feeding Dermacentor andersoni ticks.
American journal of veterinary research 1988;49(7):1010-3.
1987: T M Logan; Katherine M Kocan; W Edwards; J A Hair; P Larry Claypool; Sidney A Ewing
Persistence of colonies of Anaplasma marginale in overwintering Dermacentor variabilis.
American journal of veterinary research 1987;48(4):661-3.
1987: K B Wickwire; Katherine M Kocan; S J Barron; Sidney A Ewing; R D Smith; J A Hair
Infectivity of three Anaplasma marginale isolates for Dermacentor andersoni.
American journal of veterinary research 1987;48(1):96-9.
1986: J C Fox; Sidney A Ewing; R G Buckner; D Whitenack; J H Manley
Trypanosoma cruzi infection in a dog from Oklahoma.
Journal of the American Veterinary Medical Association 1986;189(12):1583-4.
1986: Katherine M Kocan; K B Wickwire; J A Hair; Sidney A Ewing; S J Barron
Percutaneous infection of nymphal Dermacentor andersoni with Anaplasma marginale.
American journal of veterinary research 1986;47(8):1662-4.
1986: Katherine M Kocan; D Holbert; W Edwards; Sidney A Ewing; S J Barron; J A Hair
Longevity of colonies of Anaplasma marginale in midgut epithelial cells of Dermacentor andersoni.
American journal of veterinary research 1986;47(8):1657-61.
1985: Katherine M Kocan; S J Barron; Sidney A Ewing; J A Hair
Transmission of Anaplasma marginale by adult Dermacentor andersoni during feeding on calves.
American journal of veterinary research 1985;46(7):1565-7.
1984: Katherine M Kocan; Sidney A Ewing; J A Hair; S J Barron
Demonstration of the inclusion appendage of Anaplasma marginale in nymphal Dermacentor andersoni.
American journal of veterinary research 1984;45(9):1800-7.
1983: Katherine M Kocan; D Holbert; Sidney A Ewing; J A Hair; S J Barron
Development of colonies of Anaplasma marginale in the gut of incubated Dermacentor andersoni.
American journal of veterinary research 1983;44(9):1617-20.
1983: Katherine M Kocan; R D Oberst; Sidney A Ewing; J A Hair; S J Barron
Demonstration of Anaplasma marginale in hemolymph of Dermacentor andersoni by animal inoculation and by fluorescent-antibody technique.
American journal of veterinary research 1983;44(5):798-801.
1983: Katherine M Kocan; D Holbert; Sidney A Ewing; J A Hair; S J Barron
Influence of parasitemia level at feeding on development of Anaplasma marginale Theiler in Dermacentor andersoni Stiles.
American journal of veterinary research 1983;44(4):554-7.
1982: Katherine M Kocan; Sidney A Ewing; D Holbert; J A Hair
Morphologic characteristics of colonies of Anaplasma marginale Theiler in midgut epithelial cells of Dermacentor andersoni Stiles.
American journal of veterinary research 1982;43(4):586-93.
1982: Katherine M Kocan; S J Barron; D Holbert; Sidney A Ewing; J A Hair
Influence of increased temperature on Anaplasma marginale Theiler in the gut of Dermacentor andersoni stiles.
American journal of veterinary research 1982;43(1):32-5.