Thank you for the question.
Essentially, as we've said, the two-step testing is not as effective in the early stages of infection, as antibodies are not necessarily developed early on in infections. It becomes more effective as the infection progresses, weeks and then months into the illness, which is why we talked earlier about not wanting to rely on them for the clinicians' diagnosis during that early, acute phase.
In terms of how the tests work, I'm not a laboratory scientist, but these are well-established laboratory techniques for identifying this. If the member would like, I have a colleague from the National Microbiology Laboratory here with me in the room. We can certainly ask him to provide one minute response on the technical aspects of the two tests.
This is Dr. Robbin Lindsay. He's a research scientist from Winnipeg.