Jjn. Ngeranwa et al., CHARACTERIZATION OF ANAPLASMA ISOLATES FROM ELAND (TAUROTRAGUS ORYX) - PATHOGENICITY IN CATTLE AND SHEEP AND DNA PROFILES ANALYSIS, Veterinary parasitology, 74(2-4), 1998, pp. 109-122
Two eland Anaplasma isolates, Anap(E1), from Kenya, and Anap(E2), from
South Africa were characterised, Their characterization was based on
their pathogenicity to intact and splenectomized cattle and sheep and
also their DNA profiles, Their DNA profiles were analysed and compared
to Anaplasma marginale, A. ovis and A. centrale after endonuclease re
strictions and probing with Anaplasma DNA probes, AC5-12 and AC-1. The
results of the pathogenicity trials showed Anap(E1) to be similar to
A. ovis and Anap(E2) an isolate of A. marginale. On DNA profiles, Anap
(E1) was close to A. ovis, with differences that occur even in same An
aplasma,ta species isolates from different locations. On the other han
d, Anap(E2), resembled one of the A. marginale isolates known to occur
in South Africa. The DNA profiles correlated well with the pathogenic
ity results. It is concluded that elands are carriers of both A. margi
nale and A. ovis parasites and are therefore important reservoirs that
need attention in epidemiology of anaplasmosis. (C) 1998 Elsevier Sci
ence B.V.