Browsing 1998 Onderstepoort Journal of Veterinary Research, Volume 65, 1998 by Subject "Amblyomma hebraeum"

Browsing 1998 Onderstepoort Journal of Veterinary Research, Volume 65, 1998 by Subject "Amblyomma hebraeum"

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  • The distribution of heartwater in the highveld of Zimbabwe, 1980-1997 
    Peter, T.F.; Perry, B.D. (Brian D.), 1946-; O'Callaghan, C.J.; Medley, G.F.; Shumba, W.; Madzima, W.; Burridge, M.J.; Mahan, S.M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Heartwater, the tick-borne disease caused by the rickettsia Cowdria ruminantium has historically been confined to the southern and western lowvelds of Zimbabwe. Since 1986, however, cases of heartwater have been diagnosed ...
  • Models for heartwater epidemiology: practical implications and suggestions for future research 
    Yonow, T.; Brewster, C.C.; Allen, J.C.; Meltzer, M.I.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    We present a simple model of the dynamics of heartwater that we use to explore and better understand various aspects of this disease. We adapted the Ross-Macdonald model for malaria epidemiology so that we could consider ...