Abstract
The finding that there had been multiple isolations of Palyam serogroup orbiviruses from aborted cattle fetuses in neighbouring Zimbabwe, suggested that there was a need to investigate the possible occurrence of the viruses in South Africa. Unidentified viruses isolated in South Africa, which had been in storage, were examined. Four viruses which had been isolated from Culicoides midges collected at various sites in the years from 1969 to 1977, were identified as three strains of Gweru virus and one of the Nyabira virus (Palyam group serotypes originally described from Zimbabwe). A fifth virus, isolated in 1967 from the blood of a cow with mild fever, was found to be a distinct new member of the Vellore antigenic complex of the Palyam serogroup and was named Apies River virus. Sera from 476 cattle, 150 sheep, 24 goats and 78 humans from 10 farms were tested for neutralizing antibodies to the above three serotypes of virus plus Abadina and Marondera serotypes. Only 1 of 100 cattle sera from two farms in the southern coastal area had antibody, but elsewhere there was a high prevalence of antibody with 254 (53%) of all cattle exhibiting activity for one or more of the five serotypes of virus tested. Only 6 (4%) sheep, 3 (12.5%) goats and 11 (14%) humans had antibody.
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Selected References
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- Blackburn N. K., Swanepoel R. An investigation of flavivirus infections of cattle in Zimbabwe Rhodesia with particular reference to Wesselsbron virus. J Hyg (Lond) 1980 Aug;85(1):1–33. doi: 10.1017/s0022172400027066. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Boiro I., Lomonossov N. N., Alexin A. F., Bah A., Balde C. Isolement d'un nouveau orbivirus "Kindia" (Groupe Palyam) à partir de tiques Amblyomma variegatum en République de Guinée. Bull Soc Pathol Exot Filiales. 1986;79(2):187–190. [PubMed] [Google Scholar]
- CLARKE D. H., CASALS J. Techniques for hemagglutination and hemagglutination-inhibition with arthropod-borne viruses. Am J Trop Med Hyg. 1958 Sep;7(5):561–573. doi: 10.4269/ajtmh.1958.7.561. [DOI] [PubMed] [Google Scholar]
- Cybinski D. H., St George T. D. Preliminary characterization of D'Aguilar virus and three Palyam group viruses new to Australia. Aust J Biol Sci. 1982;35(3):343–351. [PubMed] [Google Scholar]
- Dandawate C. N. Antigenic relationship among Palyam, Kasba and Vellore viruses--a new serogroup of arboviruses. Indian J Med Res. 1974 Mar;62(3):326–331. [PubMed] [Google Scholar]
- Johnson K. M., Elliott L. H., Heymann D. L. Preparation of polyvalent viral immunofluorescent intracellular antigens and use in human serosurveys. J Clin Microbiol. 1981 Nov;14(5):527–529. doi: 10.1128/jcm.14.5.527-529.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lee V. H., Causey O. R., Moore D. L. Bluetongue and related viruses in Ibadan, Nigeria: isolation and preliminary identification of viruses. Am J Vet Res. 1974 Aug;35(8):1105–1108. [PubMed] [Google Scholar]
- Moore D. L., Kemp G. E. Bluetongue and related viruses in Ibadan, Nigeria: serologic studies of domesticated and wild animals. Am J Vet Res. 1974 Aug;35(8):1115–1120. [PubMed] [Google Scholar]
- Myers R. M., Carey D. E., Reuben R., Jesudass E. S., Shope R. E. Vellore virus: a recently recognized agent of the Palyam group of arboviruses. Indian J Med Res. 1971 Aug;59(8):1209–1213. [PubMed] [Google Scholar]
- Sartorelli A. C., Fischer D. S., Downs W. G. Use of sarcoma 180/TG to prepare hyperimmune ascitic fluid in the mouse. J Immunol. 1966 Apr;96(4):676–682. [PubMed] [Google Scholar]
- Swanepoel R., Blackburn N. K. A new member of the Palyam serogroup of orbiviruses. Vet Rec. 1976 Oct 30;99(18):360–360. doi: 10.1136/vr.99.18.360. [DOI] [PubMed] [Google Scholar]
- Swanepoel R., Struthers J. K., Erasmus M. J., Shepherd S. P., McGillivray G. M., Erasmus B. J., Barnard B. J. Comparison of techniques for demonstrating antibodies to Rift Valley fever virus. J Hyg (Lond) 1986 Oct;97(2):317–329. doi: 10.1017/s0022172400065414. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Whistler T., Swanepoel R. Characterization of potentially foetotropic Palyam serogroup orbiviruses isolated in Zimbabwe. J Gen Virol. 1988 Sep;69(Pt 9):2221–2227. doi: 10.1099/0022-1317-69-9-2221. [DOI] [PubMed] [Google Scholar]
