Hepatitis A Virus and Hepatitis E Virus Seroprevalence in Izmir

Kalfaoğlu, Hale; Zeytinoğlu, Ayşın; Öcek, Zeliha

doi:10.5578/flora.57382

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…These seroprevalence results show relatively lower rates when compared with our study. The most recent study with 424 healthy subjects between the ages of 7 and 80 in the central district of Izmir reported HEV seropositivity as 6.6% using Dia.Pro assay . This result is in line with our findings (8.1% by Dia.Pro) considering that no anti‐HEV seropositivity was found in the subgroup aged between 7 and 19, which is probably the reason for the relatively low seroprevalence rate compared with the current study.…”

Section: Discussionsupporting

confidence: 93%

“…In İzmir, the only city from Western Turkey included in this study, 3 HEV seroprevalence studies had so far been performed . In these studies, anti‐HEV seropositivity was reported to be between 3.5% and 7.0%.…”

Section: Discussionmentioning

confidence: 97%

“…25 In İzmir, the only city from Western Turkey included in this study, 3 HEV seroprevalence studies had so far been performed. [26][27][28][29] In these studies, anti-HEV seropositivity was reported to be between 3.5% and 7.0%. These seroprevalence results show relatively lower rates when compared with our study.…”

mentioning

confidence: 99%

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HEV seroprevalence in blood donors in Turkey by two commercial total anti‐HEV Ab ELISA kits

Yaşar

Karataylı

Cengiz

et al. 2019

Journal of Medical Virology

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Previous hepatitis E virus (HEV) seroprevalence studies in Turkey have shown high variabilities, leading to conflicting results. We aimed to re‐evaluate HEV seroprevalence among blood donors in Turkey using the Wantai (Beijing, China) and the Dia.Pro (Milan, Italy) total anti‐HEV antibody (Ab) enzyme‐linked immunosorbent assay (ELISA) kits and compare their performances and to investigate the presence of HEV RNA in blood donors. Serum total anti‐HEV antibodies were determined in a total of 2011 volunteer blood donor samples collected from different regions of Turkey (807 from Ankara, 243 from Kayseri, 284 from İzmir, 200 from Malatya, 200 from Kahramanmaraş, and 277 from Van). HEV RNA was evaluated by a real‐time polymerase chain reaction in a total of 272 anti‐HEV seropositive samples. The country‐wide HEV seroprevalence was calculated as 11.5% (Dia.Pro) and 12.2% (Wantai) with seropositivity rates of 12.0%‐12.5% in Ankara, 7.4%‐8.2% in Kayseri, 14.5%‐15.5% in Malatya, 8.1%‐8.8% in İzmir, 15.0%‐16.0% in Kahramanmaraş, and 12.6%‐13.4% in Van by Dia.Pro and Wantai kits, respectively. The lowest detectable Ab concentrations were 0.16 and 0.14 units/mL WHO, for the Dia.Pro and the Wantai assays, respectively, showing no significant difference between assays. HEV RNA was not detected in any of the anti‐HEV seropositive samples. Compared with previous studies, HEV was shown to have a higher overall seroprevalence in Turkey. Despite its limitation, the current study represents the most comprehensive HEV seroprevalence study in Turkey performed with two different commercial ELISA assays with high sensitivities so far. Further investigation is required to determine HEV genotypes in Turkey.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 97%

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HEV seroprevalence in blood donors in Turkey by two commercial total anti‐HEV Ab ELISA kits

Yaşar

Karataylı

Cengiz

et al. 2019

Journal of Medical Virology

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“…HEV IgG positivity rate was 6.6% in 424 healthy people in İzmir. [28] In a study conducted in 180 healthcare workers in our country, anti-HEV IgG was found positive in 13 (7.2%) individuals. [29] It has been reported that HEV exposure is higher in patients with chronic HBV infection than in the general population.…”

Section: Discussionmentioning

confidence: 89%

Hepatit B Yüzey Antijeni (HBsAg) Pozitif Hastalarda Hepatit A ve Hepatit E Virüsü Seropozitifliği

Kurt

Kandemir

Erayman

2022

Journal of Contemporary Medicine

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Introduction: In this study, we aimed to determine the anti-HAV IgG and anti-HEV IgG seroprevalence in patients admitted to our clinic with Hepatitis B surface antigen (HBsAg) positivity. Material and Method: Data of 1827 patients followed up on for HBsAg positivity between 2010 and 2019 were obtained retrospectively. Results: The mean age of 1827 HBsAg positive patients was 42.71±14.84; there were 730 (39.96%) female patients and 1097 (60.04%)male. Of the 923 HBsAg positive patients whose anti-HAV IgG was measured, 830(%89,9) were detected to be positive, and 93 (10.1%) negative. Anti-HAV IgG negative patients were most often in the 21-30 age range (38.7%). Age medians were significantly different between the groups (p=0.001). HBsAg positive patients who were also positive for anti-HAV IgG tended to be older than anti-HAV IgG negative patients. In contrast, there was no significant difference in gender between anti-HAV IgG negative and positive patients (p=0.674). Of 143 HBsAg positive patients who were tested for anti-HEV-IgG, five were positive (3.5%). Conclusion: It is of interest that we found a lower rate of anti-HAV IgG positivity in young Chronic Hepatitis B patients. When hepatitis B virus is detected, a test for anti-HAV IgG should be requested from patients and if the test result is negative, the patient should be vaccinated. Our study data analysis also revealed a low anti-HEV IgG positivity.

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“…[5] In Turkey, the HEV seroprevalence is 6.3% (range, 0%-34%). [6][7][8][9] There are eight known HEV genotypes; however, only the first four of these genotypes are well-known and cause disease in humans. Genotypes 1 and 2 infect humans through the fecal-oral route and cause outbreaks, particularly in developing countries with poor hygiene conditions.…”

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confidence: 99%

Hepatitis E virus IgG seroprevalence in liver transplant patients: A retrospective single-center experience

Çelik¹,

Şenkaya²,

Ünal³

et al. 2021

Hepatology Forum

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Background and Aim: Hepatitis E virus (HEV) may cause chronic liver disease in solid organ transplant recipients. We determined HEV seroprevalence and associated factors in liver transplant recipients. Materials and Methods: Patients followed at the outpatient clinic of liver transplantation between January 2019 and January 2020 were screened retrospectively for HEV serology (HEV immunoglobulin M [IgM] and HEV immunoglobulin G [IgG]). Results: Of the 150 patients (male/female, 104/46; age, 55.4±13.2 years), anti-HEV IgG was positive in 31 (20.7%), and anti-HEV IgM was negative in all. The mean time after liver transplantation (72 [48%] deceased and 78 [52%] living donors) was 81±78.5 months. Drinking water consisted of carboy and tap water in 88 (58.7%) and 62 patients (41.3%), respectively.Of the patients, 120 (80%) and 30 (20%) lived in urban and rural areas, respectively. On comparison, the difference between positive and negative anti-HEV IgG groups in terms of age, place of birth, water supply, and donor type was statistically significant (p=0.007, p=0.000, p=0.034, and p=0.049, respectively). Conclusion:HEV seroprevalence was more frequent in liver transplant recipients compared with the normal population. Older age, water supply, and place of birth were risk factors for HEV seroprevalence.

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Hepatitis A Virus and Hepatitis E Virus Seroprevalence in Izmir

Cited by 4 publications

References 9 publications

HEV seroprevalence in blood donors in Turkey by two commercial total anti‐HEV Ab ELISA kits

HEV seroprevalence in blood donors in Turkey by two commercial total anti‐HEV Ab ELISA kits

Hepatit B Yüzey Antijeni (HBsAg) Pozitif Hastalarda Hepatit A ve Hepatit E Virüsü Seropozitifliği

Hepatitis E virus IgG seroprevalence in liver transplant patients: A retrospective single-center experience

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