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Characterization of hepatitis B and delta coinfection in Israel

Overview of attention for article published in BMC Infectious Diseases, February 2018
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Title
Characterization of hepatitis B and delta coinfection in Israel
Published in
BMC Infectious Diseases, February 2018
DOI 10.1186/s12879-018-3008-x
Pubmed ID
Authors

Rachel Shirazi, Daniela Ram, Aviya Rakovsky, Efrat Bucris, Yael Gozlan, Yaniv Lustig, Pninit Shaked-Mishan, Orit Picard, Yonat Shemer-Avni, Haim Ben-Zvi, Ora Halutz, Yoav Lurie, Ella Veizman, Matthias Carlebach, Marius Braun, Michal Cohen- Naftaly, Amir Shlomai, Rifaat Safadi, Ella Mendelson, Ella H. Sklan, Ziv Ben-Ari, Orna Mor

Abstract

Characteristics of hepatitis B (HBV) and delta (HDV) coinfection in various geographical regions, including Israel, remain unclear. Here we studied HDV seroprevalence in Israel, assessed HDV/HBV viral loads, circulating genotypes and hepatitis delta antigen (HDAg) conservation. Serological anti HDV IgG results from 8969 HBsAg positive individuals tested in 2010-2015 were retrospectively analyzed to determine HDV seroprevalence. In a cohort of HBV/HDV coinfected (n=58) and HBV monoinfected (n=27) patients, quantitative real-time PCR (qRT-PCR) and sequencing were performed to determine viral loads, genotypes and hepatitis delta antigen (HDAg) protein sequence. 6.5% (587/8969) of the HBsAg positive patients were positive for anti HDV antibodies. HDV viral load was >2 log copies/ml higher than HBV viral load in most of the coinfected patients with detectable HDV RNA (86%, 50/58). HDV genotype 1 was identified in all patients, most of whom did not express HBV. While 66.6% (4/6) of the HBV/HDV co-expressing patients carried HBV-D2 only 18.5% (5/27) of the HBV monoinfections had HBV-D2 (p=0.03). Higher genetic variability in the HDAg protein sequence was associated with higher HDV viral load. The overall significant prevalence of HDV (6.5%) mandates HDV RNA testing for all coinfected patients. Patients positive for HDV RNA (characterized by low HBV DNA blood levels) carried HDV genotype 1. Taken together, the significant HDV seroprevalence and the lack of effective anti-HDV therapy, necessitates strict clinical surveillance especially in patients with higher HDV viral loads and increased viral evolution.

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The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 38 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 7 18%
Student > Ph. D. Student 6 16%
Other 4 11%
Researcher 3 8%
Lecturer 1 3%
Other 4 11%
Unknown 13 34%
Readers by discipline Count As %
Medicine and Dentistry 6 16%
Biochemistry, Genetics and Molecular Biology 4 11%
Nursing and Health Professions 3 8%
Immunology and Microbiology 3 8%
Agricultural and Biological Sciences 2 5%
Other 4 11%
Unknown 16 42%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 March 2018.
All research outputs
#17,932,482
of 23,025,074 outputs
Outputs from BMC Infectious Diseases
#5,166
of 7,724 outputs
Outputs of similar age
#240,068
of 330,058 outputs
Outputs of similar age from BMC Infectious Diseases
#78
of 133 outputs
Altmetric has tracked 23,025,074 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 7,724 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.3. This one is in the 26th percentile – i.e., 26% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 330,058 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 22nd percentile – i.e., 22% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 133 others from the same source and published within six weeks on either side of this one. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.