Efficacy of parvaquone in the treatment of naturally occurring theileriosis in cattle in Iraq.
Parvaquone was tested in cattle infected with Theileria annulata when they were presented at clinics in the vicinity of Baghdad. Out of over 200 cases presented with suspected theileriosis between July 1984 and July 1985, the drug was used in 45 cases where theileriosis was confirmed by microscopic examination of blood and lymph node biopsy smears. Twenty seven of the cases were considered mild and 18 cases severe. Weights of the cattle were estimated and parvaquone was administered by intramuscular injection at a nominal dose of 20 mg/kg. A single treatment with parvaquone was used in 25 cases and 20 cases were treated twice but there was no correlation between severity of disease and the number of treatments given. Twelve cases (27%) also received antibacterial therapy. All cases were in exotic cattle or cattle born from exotic (imported) cattle and 64% of the cases were in cattle under six months of age. Temperatures dropped immediately after treatment and the majority were normal (below 39.5 degrees C) by two to three days after the first treatment. Of the 45 cases treated 43 recovered. This compares very favourably with a previously reported mortality of 66% in untreated imported cattle in Iraq.[1]References
- Efficacy of parvaquone in the treatment of naturally occurring theileriosis in cattle in Iraq. Hawa, N., Rae, D.G., Younis, S., Mahadi, W., Ibrahim, R., al-Wahab, W. Tropical animal health and production. (1988) [Pubmed]
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