> It takes about a month before an antibody test is accurate in someone who has had a virus This is only true for the IgG class of antibodies; we typically see

> It takes about a month before an antibody test is accurate in someone who has had a virus This is only true for the IgG class of antibodies; we typically see the IgM class of antibodies arise within 5-7 days of infection. You are generally correct, however, in stating that antibody tests have a window in which they cannot detect a new infection.