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Hepatitis E virus genotyping in Pakistan: a regional study to explore the implications for pregnant females

Aim: Hepatitis E virus (HEV) has different genotypes 1–4, which is generally associated with mild to severe complications among immunocompromised patients and pregnant women. Materials & methods: Immunoglobulin M (IgM) HEV-positive samples were collected from the diagnostic center. HEV infection was further confirmed by RT-based PCR and genotyping was done to affirm the prevailing genotype. Results: This study identified 28 patients from Islamabad who were confirmed to have immunoglobulins type M against HEV showing acute infection, of which 17 were pregnant and 11 were non-pregnant women. All pregnant women were in their third trimester of pregnancy. Conclusion: Genotype-1 is commonly associated with pregnant females presenting with HEV infections in Islamabad. There is a need to further identify both the sources & route of infections.