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3525 Social & Preventive Medicine

In a surveillance centre for Hepatitis , in a low prevalance area, the method for testing for Hepatitis B was single ELISA. This policy was changed to double testing in series. This would result in the following 2 parameters of the test being affected -a) Specificity and positive predictive valueb) Sensitivity and positive predictive valuec) Sensitivity and negative predictive valued) Specificity and negative predictive value

Aac
Ba
Cab
Dbc
Social & Preventive Medicine
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