Current status of HDV infection at 108 Military Central Hospital

  • Mai Thanh Bình Bệnh viện Trung ương Quân đội 108
  • Nghiêm Xuân Hoàn Bệnh viện Trung ương Quân đội 108

Main Article Content

Keywords

HDV, HDV infection, HDV genotype, HBV infection, HBV/HDV coinfection

Abstract

Objective: To assess the prevalence of hepatitis Delta virus and genotypes distributions in 108 Military Central Hospital. Subject and method: A total of 546 HBV-infected patients were enrolled from 2013 to 2015 at the 108 Military Central Hospital, and classified clinically into the subgroups of chronic hepatitis B (CHB, n = 191), liver cirrhosis (LC, n = 147) and hepatocellular carcinoma (HCC, n = 208). The patients were screened for HDV-RNA by nested PCR assays. HDV genotypes were assessed by direct sequencing, followed by phylogenetic analyses. Result: HDV-RNA was identified in 13% (71/546) of HBV-infected patients. The highest HDV prevalence was found in the LC group (19.7%), followed by the HCC (12%) and CHB (8.9%) groups (p=0.012). Phylogenetic analyses indicated that the genotype HDV1 was, with a prevalence of 91%, by far the most common genotype in Vietnam, followed by HDV2 with 9%. Other HDV genotypes were not observed. Conclusion: High prevalence of HDV infection in hepatitis B patients in 108 Military Central Hospital, with the HDV1 genotype still being the predominant genotype. HDV nucleic acid testing to minimize the associated risk should be considered.

Article Details

References

1. Sureau C and Negro F (2016) The hepatitis delta virus: Replication and pathogenesis. J Hepatol 64(1): 102-116.
2. Noureddin M and Gish R (2014) Hepatitis delta: epidemiology, diagnosis and management 36 years after discovery. Curr Gastroenterol Rep 16(1): 365.
3. Le Gal F, Gault E, Ripault MP, Serpaggi J, Trinchet JC, Gordien E, Dény P (2006) Eighth major clade for hepatitis delta virus. Emerg Infect Dis 12(9): 1447-1450.
4. Thimme R (2016) Highlights from Hepatology 2015: From Chronic Hepatitis to Hepatocellular Carcinoma. Dig Dis 34(4): 1-2.
5. Andernach IE, Leiss LV, Tarnagda ZS, Tahita MC, Otegbayo JA, Forbi JC, Omilabu S, Gouandjika-Vasilache I, Komas NP, Mbah OP, Muller CP (2014) Characterization of hepatitis delta virus in sub-Saharan Africa. J Clin Microbiol 52(5): 1629-1636.
6. Nguyen VT (2012) Hepatitis B infection in Vietnam: current issues and future challenges. Asia Pac J Public Health 24(2): 361-373.
7. Dunford L, Carr MJ, Dean J, Nguyen LT, Ta Thi TH, Nguyen BT, Connell J, Coughlan S, Nguyen HT, Hall WW, Thi LA (2012) A multicentre molecular analysis of hepatitis B and blood-borne virus coinfections in Viet Nam. PLoS One 7(6): 39027.
8. Sy BT, Ratsch BA, Toan NL, Song le H, Wollboldt C, Bryniok A, Nguyen HM, Luong HV, Velavan TP, Wedemeyer H, Kremsner PG, Bock CT (2013) High prevalence and significance of hepatitis D virus infection among treatment-naive HBsAg-positive patients in Northern Vietnam. PLoS One 8(10): 78094.
9. Hall N, Thuy LN, Diem Tdo T, Waters A, Dunford L, Connell J, Carr M, Hall W, Thi LA (2015) High prevalence of hepatitis delta virus among persons who inject drugs, Vietnam. Emerg Infect Dis 21(3): 540-543.
10. Nguyen HM, Sy BT, Trung NT, Hoan NX, Wedemeyer H, Velavan TP, Bock CT (2017) Prevalence and genotype distribution of hepatitis delta virus among chronic hepatitis B carriers in Central Vietnam. PLoS One 12(4): 0175304.