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British Microbiology Research Journal

British Microbiology Research Journal, ISSN: 2231-0886,Vol.: 5, Issue.: 3

 

Original Research Article

 

Comparative Analysis of Clinical and Biological Characteristics of African Swine Fever Virus Isolates from 2013 Year Russian Federation

 

 

N. N. Vlasova1*, A. A. Varentsova1, I. V. Shevchenko1, I. Yu. Zhukov1, S. G. Remyga1, V. L. Gavrilova1, O. S. Puzankova1, A. A. Shevtsov1, N. G. Zinyakov2 and K. N. Gruzdev3

1Referense Laboratory for ASF, FGBI “Federal Centre for Animal Health” (FGBI “ARRIAH”). 600901 Yur'evets, Vladimir, Russia.
2Referense Laboratory for Viral Avian Diseases, FGBI “Federal Centre for Animal Health” (FGBI “ARRIAH”). 600901 Yur'evets, Vladimir, Russia.
3Chief Expert on Porcine Diseases, FGBI “Federal Centre for Animal Health” (FGBI “ARRIAH”). 600901 Yur'evets, Vladimir, Russia.

 

Abstracts

 

Domestic pigs were inoculated with 50 (low) or 5000 (high) haemadsorbing doses (HAD50) via intranasal (IN) or intramuscular (IM) routes, to investigate the pathogenesis of 5 Russian isolates of African Swine Fever Virus (ASFV) collected in 2013. Several clinical and virological parameters (including hemorrhagic syndrome, body fever and gross and microscopic lesions) were identical between the high and low dose groups for all 5 isolates, whereas duration of pyrexia, incubation period and clinical phase of infection differed between the high and low doses and between the 5 isolates. Additionally, pigs inoculated with high ASFV doses had the shortest mean survival time. A subsequent contact challenge experiment demonstrated that IN- and IM-inoculated pigs were able to transmit ASFV via direct contact with non-infected pigs.
Finally, our experiments indicated that these Russian ASFV isolates possessed variable pathogenicity. The isolates from wild boars had the lowest virulence and extended disease duration as compared to those from domestic pigs.

 

Keywords :

African swine fever (ASF); challenge; ELISA; lymphocyte apoptosis; transmission; pathogenesis; domestic pig.

 

Full Article - PDF    Page 203-215    Article Metrics

 

DOI : 10.9734/BMRJ/2015/12941

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