The Prevalence of Hepatitis D Virus in Reactive HBsAg Blood Donors at Department of Pathology, LUMHS Jamshoro

2021 ◽  
Vol 15 (10) ◽  
pp. 3126-3129
Author(s):  
Sadia Akbar ◽  
Nazia Mumtaz ◽  
Sana Fatema ◽  
Ikram Din Ujjan ◽  
Kiran Aamir ◽  
...  

Background: The hepatitis delta virus (HDV) is a defective hepatotropic virus that only affects patients infected with the hepatitis B virus (HBV). Infection with the hepatitis delta virus can cause acute hepatitis, including the fulminant presentation or spontaneously resolving infection and chronic infection Aim: The present study's aim was to determine the prevalence of the Hepatitis D virus in reactive HBsAg blood donors at Diagnostic and Research Lab Hyderabad. Materials and Methods: This cross-sectional study was conducted on 434 blood donors at the Pathology department (Diagnostic and Research Laboratory) Civil Hospital, Hyderabad from January 2017 to December 2017. All the healthy individuals who visited at Diagnostic and Research Laboratory of Civil Hospital, LUMHS Hyderabad as blood donors with specific age groups of either gender were included in this study. All the individuals underwent Hepatitis screening. All of those cases that were noted with positive HBV further underwent HDV screening test. All the data was recorded in the proforma for the purposed of analysis. SPSS version 20 was used for data analysis. Results: Of the total 434 blood donors, 420 (96.8%) were male and 14 (3.2%) were female. The overall mean age was 31.65±4.67 years with an age range of 18 to 60 years. Out of 434, the incidence of positive delta virus was 62 (14.3%) while the remaining 372 (85.7%) were negative delta hepatitis blood donors. The prevalence of delta hepatitis blood donors with respect to age distribution were as follows; 18-30 years had 208 (48%), 31-40 years had 188 (27%), 41-50 years 69 (16%), and 51-60 years 39 (9%). Of the total 62 positive delta hepatitis, the prevalence of males and females was 98.4% and 1.6% respectively. All the donor’s blood group was divided into +O, +B, +A, +AB, -O, -A, and –B with their respective prevalence was 48.6%, 22.6%. 11.5%, 8.8%, 2.5%, 3.5%, and 2.5% whereas their frequency in positive tested delta hepatitis was 36 (58.1%), 7 (11.3%), 10 (16.1%), 6 (9.7%), 1 (1.6%), 2 (3.2%), and 0 (0%) respectively. Conclusion: It is concluded that the prevalence of HDV is 14.3% in Hepatitis B reactive healthy donors. This is a higher prevalence as compared to previously published studies. No such adequate recent data is available at the local level. More research is needed on this event, to provide adequate knowledge, which will be helpful to clinical and laboratory investigators, and physicians to reduce the burden of liver disease caused by HBV and HDV co-infection. Keywords: Hepatitis delta virus; HBsAg reactivity; Blood donors;

2018 ◽  
Author(s):  
Michelle Wille ◽  
Hans J. Netter ◽  
Margaret Littlejohn ◽  
Lilly Yuen ◽  
Mang Shi ◽  
...  

AbstractHepatitis delta virus (HDV) is currently only found in humans, and is a satellite virus that depends on hepatitis B virus (HBV) envelope proteins for assembly, release and entry. Using meta-transcriptomics, we identified the genome of a novel HDV-like agent in ducks. Sequence analysis revealed secondary structures that were shared with HDV, including self-complementarity and ribozyme features. The predicted viral protein shares 32% amino acid similarity to the small delta antigen of HDV and comprises a divergent phylogenetic lineage. The discovery of an avian HDV-like agent has important implications for the understanding of the origins of HDV and subviral agents.ImportanceHepatitis delta virus (HDV) is currently only found in humans, and coinfections of HDV and Hepatitis B virus (HBV) in humans result in severe liver disease. There are a number of hypotheses for the origin of HDV, although a key component of all is that HDV only exists in humans. Here, we describe a novel deltavirus-like agent identified in wild birds. Although this agent is genetically divergent, it exhibits important similarities to HDV, such as the presence of ribosymes and self-complementarity. The discovery of an avian HDV-like agent challenges our understanding of both the origin and the co-evolutionary relationships of subviral agents with helper viruses.


2021 ◽  
pp. 104870
Author(s):  
Boris J.B. Beudeker ◽  
Jolanda J.C. Voermans ◽  
Corine.H. GeurtsvanKessel ◽  
Robert J. de Knegt ◽  
Tamara Kuhlemann ◽  
...  

2021 ◽  
Author(s):  
Kasthuri Prakash ◽  
Simon B. Larsson ◽  
Gustaf E. Rydell ◽  
Johan Ringlander ◽  
Catarina Skoglund ◽  
...  

Digestion ◽  
1993 ◽  
Vol 54 (1) ◽  
pp. 9-14
Author(s):  
Nicola Napoli ◽  
Giorgio Fiore ◽  
Giacomo Fera ◽  
Angela Modugno ◽  
Gianluigi Giannelli ◽  
...  

Viruses ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 720 ◽  
Author(s):  
Michelle Wille ◽  
Hans Netter ◽  
Margaret Littlejohn ◽  
Lilly Yuen ◽  
Mang Shi ◽  
...  

Hepatitis delta virus (HDV) is currently only found in humans and is a satellite virus that depends on hepatitis B virus (HBV) envelope proteins for assembly, release, and entry. Using meta-transcriptomics, we identified the genome of a novel HDV-like agent in ducks. Sequence analysis revealed secondary structures that were shared with HDV, including self-complementarity and ribozyme features. The predicted viral protein shares 32% amino acid similarity to the small delta antigen of HDV and comprises a divergent phylogenetic lineage. The discovery of an avian HDV-like agent has important implications for the understanding of the origins of HDV and sub-viral agents.


1993 ◽  
Vol 6 (3) ◽  
pp. 211-229 ◽  
Author(s):  
L B Polish ◽  
M Gallagher ◽  
H A Fields ◽  
S C Hadler

Hepatitis delta virus, discovered in 1977, requires the help of hepatitis B virus to replicate in hepatocytes and is an important cause of acute, fulminant, and chronic liver disease in many regions of the world. Because of the helper function of hepatitis delta virus, infection with it occurs either as a coinfection with hepatitis B or as a superinfection of a carrier of hepatitis B surface antigen. Although the mechanisms of transmission are similar to those of hepatitis B virus, the patterns of transmission of delta virus vary widely around the world. In regions of the world in which hepatitis delta virus infection is not endemic, the disease is confined to groups at high risk of acquiring hepatitis B infection and high-risk hepatitis B carriers. Because of the propensity of this viral infection to cause fulminant as well as chronic liver disease, continued incursion of hepatitis delta virus into areas of the world where persistent hepatitis B infection is endemic will have serious implications. Prevention depends on the widespread use of hepatitis B vaccine. This review focuses on the molecular biology and the clinical and epidemiologic features of this important viral infection.


2019 ◽  
Author(s):  
Wei-Shan Chang ◽  
John H.-O. Pettersson ◽  
Callum Le Lay ◽  
Mang Shi ◽  
Nathan Lo ◽  
...  

Hepatitis delta virus (HDV) is the smallest known RNA virus and encodes a single protein. Until recently, HDV had only been identified in humans, where it is strongly associated with co-infection with hepatitis B virus (HBV). However, the recent discovery of HDV-like viruses in metagenomic samples from birds and snakes suggests that this virus has a far longer evolutionary history. Herein, using additional meta-transcriptomic data, we show that highly divergent HDV-like viruses are also present in fish, amphibians and invertebrates. Notably, the novel viruses identified here share HDV-like genomic features such as a small genome size of ~1.7kb in length, circular genomes, and self-complementary, unbranched rod-like structures. Coiled-coil domains, leucine zippers, conserved residues with essential biological functions and isoelectronic points similar to those in the human hepatitis delta virus antigens (HDAgs) were also identified in the putative non-human HDAgs. Notably, none of these novel HDV-like viruses were associated with hepadnavirus infection, supporting the idea that the HDV-HBV association may be specific to humans. Collectively, these data not only broaden our understanding of the diversity and host range of HDV in non-human species, but shed light on its origin and evolutionary history.


PLoS ONE ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. e0175304 ◽  
Author(s):  
Hung Minh Nguyen ◽  
Bui Tien Sy ◽  
Nguyen Thanh Trung ◽  
Nghiem Xuan Hoan ◽  
Heiner Wedemeyer ◽  
...  

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