Transmission of Ehrlichia risticii, the agent of Potomac horse fever, using naturally infected aquatic insects and helminth vectors: Preliminary report

Equine Veterinary Journal

Volumn 32, Issue 4, 2000, Pages 275-279

  Madigan, J E ^a   Pusterla, N ^a   Johnson, E ^a   Chae, J S ^a   Berger Pusterla, J ^a   Derock, E ^a   Lawler, S P ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

Aquatic insects; Ehrlichia risticii; Horse; Natural infection route; Potomac horse fever; Snails; Trematode

Indexed keywords

DICOSMOECUS GILVIPES; EHRLICHIA; EQUIDAE; EQUUS CABALLUS; GASTROPODA; HEXAPODA; INSECTA; NEORICKETTSIA RISTICII; TREMATODA; TRICHOPTERA; VERMES;

BACTERIAL RNA; RNA 16S;

ANIMAL; ANIMAL DISEASE; ARTICLE; CELL LINE; CHEMISTRY; DISEASE CARRIER; DISEASE TRANSMISSION; EHRLICHIA; EHRLICHIOSIS; FEMALE; FLY; GENETICS; HORSE; HORSE DISEASE; MACROPHAGE; MALE; MICROBIOLOGY; MOUSE; PARASITOLOGY; SNAIL; TREMATODE;

ANIMALS; CELL LINE; DIPTERA; DISEASE VECTORS; EHRLICHIA; EHRLICHIOSIS; FEMALE; HORSE DISEASES; HORSES; INSECT VECTORS; MACROPHAGES; MALE; MICE; RNA, BACTERIAL; RNA, RIBOSOMAL, 16S; SNAILS; TREMATODA;

EID: 0034221221     PISSN: 04251644     EISSN: None     Source Type: Journal    
DOI: 10.2746/042516400777032219     Document Type: Article

References (28)

1. Barlough, J.E., Rikihisa, Y. and Madigan, J.E. (1997) Nested polymerase chain reaction for detection of Ehrlichia risticii genomic DNA in infected horses. Vet. Parasitol. 68, 367-373.
2. Barlough, J.E., Reubel, G.H., Madigan, J.E., Vredevoe, L.K., Miller, P.E. and Rikihisa, Y. (1998) Detection of Ehrlichia risticii, the agent of Potomac horse fever, in freshwater stream snails (Pleuroceridae: Juga spp.) from northern California. Appl. Environ. Microbiol. 64, 2888-2893.
3. Burns, W.C. (1961) Penetration and development of Allassogonoporus vespertilionis and Acanthatrium oregonense (Trematoda: Lecithodendriidae) cercariae in caddis fly larvae. J. Parasitol. 47, 927-938.
4. Chae, J.-S., Pusterla, N., Johnson, E., Lawler, S.P. and Madigan, J.E. (2000) Aquatic insects carry trematodes infected with the causal agent of equine monocytic ehrlichiosis. J. Med. Entomol. In Press.
5. Dutta, S.K., Penney, B.E., Myrup, A.C., Robl, M.G. and Rice, R.M. (1988) Disease features in horses with induced equine monocytic ehrlichiosis (Potomac horse fever). Am. J. vet. Res. 49, 1747-1751.
6. Hahn, N.E., Fletcher, M., Rice, R.M., Kocan, K.M., Hansen, J.W., Hair, J.A., Barker, R.W. and Perry, B.D. (1990) Attempted transmission of Ehrlichia risticii, causative agent of Potomac horse fever, by the ticks, Dermacentor variabilis, Rhipicephalus sanguineus, Ixodes scapularis, and Amblyomma americanum. Exp. appl. Acarol. 8, 41-50.
7. Holland, C.J., Ristic, M., Cole, A.I., Johnson, P., Baker, G. and Goetz, T. (1985a) Isolation, experimental transmission, and characterization of causative agent of Potomac horse fever. Science 227, 522-524.
8. Holland, C.J., Weiss, E., Burgdorfer, W., Cole, A.I. and Kakoma, I (1985b) Ehrlichia risticii sp. nov.: etiological agent of equine monocytic ehrlichiosis (synonym, Potomac horse fever). Int. J. Syst. Bacteriol. 35, 524-526.
9. Knight, R.A. and Pratt, I. (1955) The life-histories of Allassogonoporus vespertilionis Macy and Acanthatrium oregonense Macy (Trematoda: Lecithodendriidae). J. Parasitol. 41, 248-255.
10. Knowles, R.C., Anderson, C.W., Shipley, W.D., Whitlock, R.H., Perry, B.D. and Davidson, J.P. (1983) Acute equine diarrhea syndrome (AEDS): a preliminary report. Proc. Am. Ass. equine Practnrs. 29, 353-357.
11. Levine, J.F., Levy, M.G., Nicholson, W.L. and Gager, R.B. (1990) Attempted Ehrlichia risticii transmission with Dermacentor variabilis (Acari: Ixodidae). J. med. Entomol. 27, 931-933.
12. Madigan, J.E., Rikihisa, Y., Palmer, J.E., DeRock, E. and Mott, J. (1995) Evidence for a high rate of false-positive results with the indirect fluorescent antibody test for Ehrlichia risticii antibody in horses. J. Am. vet. med. Ass. 207, 1448-1453.
13. Merrit, R.W. and Cummins, K.W. (1996) An Introduction to the Aquatic Insects of North America, Kendall and Hunt Publishers, Dubuque, Iowa.
14. Palmer, J.E. (1993) Potomac horse fever. Vet. Clin. N. Am.: Equine Pract. 9, 399-410.
15. Palmer, J.E. and Benson, C.E. (1988) Oral transmission of Ehrlichia risticii resulting in Potomac horse fever. Vet. Rec. 122, 635.
16. Palmer, J.E. and Benson, C.E. (1994) Studies on oral transmission of Potomac horse fever. J. vet. intern. Med. 8, 87-92.
17. Perry, B.D., Rikihisa, Y. and Saunders, G.K. (1985) Intradermal transmission of Potomac horse fever. Vet. Rec. 116, 246-247.
18. Pretzman, C., Ralph, D., Stothard, D.R., Fuerst, P.A. and Rikihisa, Y. (1995) 16S rRNA gene sequence of Neorickettsia helminthoeca and its phylogenetic alignment with members of the genus Ehrlichia. Int. J. Syst. Bacteriol. 45, 207-211.
19. Pusterla, N., Madigan, J.E., Chae, J.-S., DeRock, E., Johnson, E. and Berger Pusterla, J. (2000) Helminthic transmission and isolation of Ehrlichia risticii, the causative agent of Potomac horse fever, by using trematode stages from freshwater stream snails. J. clin. Microbiol. 38, 1293-1297.
20. Reubel, G.H., Barlough, J.E. and Madigan, J.E. (1998) Production and characterization of Ehrlichia risticii, the agent of Potomac horse fever, from snails (Pleuroceridae: Juga spp.) in aquarium culture and genetic comparison to equine strains. J. clin. Microbiol. 36, 1501-1511.
21. Rikihisa, Y. (1991a) Cross-reacting antigens between Neorickettsia helminthoeca and Ehrlichia species, shown by immunofluorescence and Western immunoblotting. J. clin. Microbiol. 29, 2024-2029.
22. Rikihisa, Y. (1991b) The tribe Ehrlichieae and ehrlichial diseases. Clin. Microbiol. Rev. 4, 286-308.
23. Ristic, M. (1990) Current strategies in research on ehrlichiosis. In: Ehrlichiosis: A Vector-borne Disease of Animals and Humans, Eds: J.C. Williams and I. Kakoma, Kluwer Academic Publishers, Boston, pp 136-153
24. Schmidtmann, E.T., Robl, M.G. and Carroll, J.F. (1986) Attempted transmission of Ehrlichia risticii by field-captured Dermacentor variabilis (Acari: Ixodidae). Am. J. vet. Res. 47, 2393-2395.
25. Usinger, R.L. (1968) Aquatic Insects of California, University of California Press, Berkeley, California.
26. Van der Kolk, J.H. and De Groot, J. (1991) Equine monocytic ehrlichiosis (EME), a review. Tijdschr. Diergeneeskd. 116, 721-727.
27. Wiggins, G.B. (1996) Larvae of the North American Caddisfly Genera (Trichoptera), University Press, Toronto, Canada.
28. Wiggins, G.B. and Richardson, J.S. (1982) Revision and synopsis of the caddisfly genus Dicosmoecus (Trichoptera: Limnephilidae; Dicosmoecinae). Aquatic Insects 4, 181-217.