Hepatitis E: Canada welcomes the world: part3 | Practice nurses in Canada
... Testing for hepatitis E exposure and active infection has improved substantially in recent years. Polymerase chain reaction (pcr) analysis for hev genomes in serum, stool and liver tissue has supplanted evaluation of the stool by electron microscopy as the definitive test for active infection. Unfortunately, the availability of this test is limited to research facilities. Serological tests for antibodies to recombinant hev proteins are available at specialized centers and are being used to clarify the epidemiological and clinical features of hev.