Note that this is different from typical tests in that it isn’t looking for the virus itself – it is looking to see if the subject has antibodies to the virus. Which means that it would also be positive if somebody had the virus at one point but recovered. From the press release they do mention looking for both IgM and IgG antibodies, and IgM is more present during early infection, so maybe by doing a ratio they can determine the stage of the infection and whether it is likely cleared.
13 Likes
