Clinical significance of viral markers testing by ELISA and Individual Donation Nucleic Acid Testing (ID-NAT) for blood screening in blood bank: Single center study in Egypt.

Prevention of transfusion-transmitted viral infections and insurance of safe blood transfusion are the main goals of all blood banks worldwide. Despite the high sensitivity and specificity of currently used enzyme linked immunosorbent assay (ELISA) for hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV) testing, viral transmission could still occur during the window period. Introducing viral individual donation nucleic acid testing (ID-NAT) can greatly decrease such risk providing an additional layer in securing blood transfusion.

Prevalence and determinants of glaucoma in citizens of qatar aged 40 years or older: a community-based survey.

Background: We present the prevalence and determinants of glaucoma among subjects 40 years of age and older in Qatar.

Materials And Methods: This community-based survey was held in 2009 at 49 randomly selected clusters. Demographic details and history of glaucoma was collected by the nurses.

Prevalence and determinants of diabetic retinopathy among persons ≥ 40 years of age with diabetes in Qatar: a community-based survey.

Purpose: We present the prevalence and determinants of diabetic retinopathy (DR) in persons 40 years and older with diabetes in Qatar.

Methods: This community-based survey was held in 2009 at 49 randomly selected clusters. Demographic details and history of diabetes mellitus (DM) and its management were collected by nurses.