Research Article
Characterization of the Occult Hepatitis B Virus Variants Circulating among the Blood Donors from Eastern India
Table 2
Frequency of basal core promoter and precore mutations among the occult HBV isolates.
| | Mutations (%) | HBV genotypes/subgenotypes | | HBV/A1 () | HBV/C1 () | HBV/D1 () | HBV/D2 () | HBV/D3 () |
| | 1752C | 1 (25.0) | — | — | 2 (25.0) | 1 (8.3) | | 1753C | — | 1 (100.0) | — | 1 (12.5) | 2 (16.6) | | 1762T/1764A | — | — | 1 (50.0) | — | 1 (8.3) | | 1753C + 1762T/1764A | 1 (25.0) | — | — | 1 (12.5) | — | | 1773C | 1 (25.0) | 1 (100.0) | — | 5 (62.5) | 4 (33.3) | | 1814C | 1 (25.0) | — | — | — | 6 (50.0) | | 1858C | 3 (75.0) | — | — | 1 (12.5) | 6 (50.0) | | 1862T | 2 (50.0) | — | — | — | 5 (41.7) |
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Notably, 1766T/1768A mutation in BCP region and 1896A or 1899A mutations in pre-C region could not be detected.
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