The discontinuation of HSV IgM and VZV IgM assays will take effect on 31st August 2016
The department of Infection & Immunity will no longer be carrying out HSV IgM and VZV IgM assays. This is due to limited clinical utility, with low sensitivity and specificity of these tests. It is recommended that PCR testing is carried out for the diagnosis of HSV and VZV infection.
For further information please see the attached document here