"Please Note: A window period of 3-5 weeks exists from the time of infection to the time if seroconversion using this detection method. If an individual is suspected to be at risk for seroconversion and the first test result is negative (or equivocal), testing should be performed again on a sample taken at 6 weeks. Method: Abbott Axsym HIV1/2GO."
Ok, let me get this straight. They're saying that at 6 weeks negative is basically conclusive? Or are they are saying that you have to re-test at another 6 weeks, i.e 12 weeks?
With regard to individuals with healthy immune systems a 6 week result is almost always accurate. You will never find a precise answer to the window period question but for practical purposes and with regard to the general populations 6 weeks is pretty darn sufficient. Of course follow up testing at 3 months and even at 6 months is always an option but instances of negative tests at 6 weeks followed by positives at 3 or 6 months are extremely rare.
They are saying that if someone has a genuine risk and are tested at 5 weeks or before, a retest should be done at 6 weeks and that 6 week test is pretty much conclusive with that method.