Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...
COVID-19 is alive in new forms and still making people sick. While the pandemic is behind us and infections don’t cause the ...
A 2022 study estimates that at-home flu tests have a sensitivity of about 63% if the test is performed within 72 hours of ...
Three relatives test positive for methamphetamine but claim results are false and provide independent negative tests.
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