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  • Title: Epstein-Barr virus genotypes and strains in central nervous system demyelinating disease and Epstein-Barr virus-related illnesses in Australia.
    Author: Lay ML, Lucas RM, Toi C, Ratnamohan M, Ponsonby AL, Dwyer DE.
    Journal: Intervirology; 2012; 55(5):372-9. PubMed ID: 22286116.
    Abstract:
    OBJECTIVES: To identify Epstein-Barr virus (EBV) genotypes and strains in samples from individuals with and without a first diagnosis of central nervous system (CNS) demyelinating disease (a possible precursor to multiple sclerosis) and patients with EBV-associated diseases in Australia. METHODS: Samples from 55 EBV DNA and serology positive subjects including individuals with (n = 17) and without (n = 21) a first clinical diagnosis of CNS demyelination and patients with EBV-related diseases (n = 17) were examined. EBV genotype and strain were identified by sequence mutations within the Epstein-Barr nuclear antigen-2 region (EBNA-2) using DNA sequence analysis. RESULTS: Both EBV genotypes, A and B, were detected (genotype A, 54/55, 98.2%; genotype B, 1/55, 1.8%). Within genotype A, GD1 was the most commonly detected strain (42/54, 77.7%), followed by B95-8 (9/54, 16.7%) and M-ABA (3/54, 5.6%). Genotype B, strain AG876, was found in one individual with CNS demyelinating disease. CONCLUSIONS: EBV genotype A and the GD1 strain were the common EBV genotypes isolated from individuals with and without CNS demyelinating disease, and in subjects with various EBV-related diseases. Although disease-specific genotypes or strains were not identified, this study provides useful insights into the molecular epidemiology of EBV infection in Australia.
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