Prevalence, correlates, and viral dynamics of hepatitis delta among injection drug users.

Prevalence, correlates, and viral dynamics of hepatitis delta among injection drug users.
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DOI:
10.1086/655808
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发表时间:
2010-09-15
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Golub ET
Golub ET
中科院分区:
其他
文献类型:
--
作者:
Kucirka LM;Farzadegan H;Feld JJ;Mehta SH;Winters M;Glenn JS;Kirk GD;Segev DL;Nelson KE;Marks M;Heller T;Golub ET

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Most hepatitis delta virus(HDV) prevalence estimates from the United States are over 10 years old, and HDV has shown significant temporal variation in other populations. HDV/hepatitis B(HBV) dual infection progresses rapidly, has more complications, and a different treatment regimen than HBV infection alone. Accurate estimates of prevalence and risk factors are important to help clinicians decide who to screen. Injection drug users(IDUs) in Baltimore, MD positive for HBV serologic markers were tested for hepatitis delta antibody(HDAb) at two time periods: 1988-1989(n= 194) and 2005-2006(n=258). Those HDAb+ in 2005-2006 plus a random sample of HDAb-, HBV+ participants were tested for HDV-RNA, HBV-DNA, and HCV-RNA. Characteristics associated with HDV exposure and viremia were identified. HDV prevalence declined from 15% in 1988-1989 to 11% in 2005-2006. Among those with chronic HBV infection, prevalence increased from 29%(n=15/48) to 50%(n=19/38), p = 0.05. Visiting a shooting gallery was a strong correlate of HDAb positivity (relative risk=3.08, p=0.01). 8(32%) of those HDAb+ were HDV viremic. Viremic participants had elevated liver enzymes and more ER visits. The temporal increase in HDV prevalence among those with chronic HBV infection is concerning; understanding this change should be a priority to prevent the burden from increasing.
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