• Title/Summary/Keyword: FMD Virus Strains

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STRAINS OF FOOT-AND-MOUTH DISEASE VIRUS IN DIFFERENT DISTRICTS OF BANGLADESH

  • Chowdhury, S.M.Z.H.;Rahman, M.F.;Rahman, M.B.;Rahman, M.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.9 no.3
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    • pp.315-317
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    • 1996
  • An investigation was carried out to find out the strains of foot-and-mouth disease (FMD) virus in 24 districts of Bangladesh. A total of 505 FMD virus samples were collected from June, 1989 to June, 1991 and tested by complement fixation test (CFT). Of these, 276 (54.7%) were found positive for different strains of FMD virus and the rest 45.3% were either negative or anticomplementary. Strains identified were O, C, Asia-1 and sub-strains $A_5$ and $A_{22}$. Strain O was found to be most prevalent(39.8%) followed by Asia-1 (5.7%), C (5.3%), $A_5$ (3.4%) and $A_{22}$ (0.4%). Prevalence of sub-strain $A_5$ was reported for the first time in Bangladesh. District-wise typing of FMD virus has been done which would be helpful for appropriate vaccination programme in different districts of Bangladesh for control of the malady.

Immunological relationships of FMD vaccine strain and Asia1 field isolate from East Asia (동아시아 유래 구제역바이러스 Asia1혈청형과 백신항원의 면역학적 상관성)

  • Park, Jong-Hyeon;Ko, Young-Joon;Kim, Su-Mi;Lee, Hyang-Sim;Lee, Kwang-Nyeong;Cho, In-Soo
    • Korean Journal of Veterinary Research
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    • v.49 no.3
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    • pp.221-229
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    • 2009
  • Foot-and-mouth disease (FMD) is the most contagious disease of mammals. The use of inactivated vaccine can be chosen to prevent or control FMD. However, vaccination against one serotype of FMDV doses not cross-protect against other serotypes and may not protect fully against some strains of the same serotype. Appropriate selection of vaccine strain is an important element in the control of FMD. The immunity of vaccine antigens should be matched against newly circulating viruses. The phylogenetic analysis of serotype Asia1 reported from China, Mongolia, North Korea and Russia since 2005 shows that they are all classified into genetic group V, but the strain, Asia1/Shamir (ISR/89) which have been used as a vaccine strain in Korea, is clustered into different genetic group. So, in this study the serological relationship between the isolate (Asia1/MOG/05; MOG) and the Shamir strain was determined by ELISA and virus neutralization test. Even though the matching value of the virus (MOG) against the vaccinated sera in target animals was not so high, the vaccinated animals elicited antibodies enough for protection after vaccinated once or twice. Conclusively, we suggest that the vaccine containing Asia1/Shamir antigen could protect the genetic group V strains circulating in East Asia currently if vaccinated twice or the more.