Detection of African horsesickness (AHS) in recently vaccinated horses with inactivated vaccine in Qatar
DOI:
https://doi.org/10.19182/remvt.8890Keywords
horses, viruses, African horse sickness virusAbstract
Two 7-year old Arabian racing horses were reported to show typical AHS symptoms in Qatar and died shortly after. The horses had been vaccinated with formol inactivated vaccine approximately 10 days before the onset of the disease. Blood samples from these horses were collected and AHS virus isolated from one sample after intracerebral (i.c.) inoculation into suckling mice. The virus identity was confirmed by complement fixation test (CFT) using the virus antigen and reference type 9 of AHS virus hyperimmune serum. The serotype of the isolated virus was identified by serum neutralization test (SNT) using reference types of AHS virus. Two possibilities of the original source of this infection were suggested. The infection might be due first to the natural endemic occurence of the virus in the country and secondly, to the presence of residual infectious virus in the inactivated vaccine.
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© M.M.Hassanain et al., hosted by CIRAD 1990
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