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Tested negative for ankylosing spondylitis by PCR blood test. Apparently PCR is the most sensitive test. Does this mean i definitely don't have as?
Confused? I had a Positive pcr RNA HIV test after 32 days of exposure VIRAL LOAD 1.06 *10^8 IU/ml .But HIV combo and elisa still Negative.. last Elisa I did 120 days after exposure I made 4 combo tests in different labs after 6& 12 &16 neg?
Can you have ankylosing spondylitis with a negative antibody blood test?
Question about covid. I was exposed to covid on feb 16. I started quarantining that day. Got PcR next day, it was negative. Got PCR on feb 21st, positive. My quarantine continues from feb 16 or resets at feb 21. No symptoms at all so far. Confused?
HIV) The CDC states that the 4th Antigen and antibody test window period is 18-45 days and the NAT PCR test to be 14 - 33 days. If these tests are taken after the window periods, are they conclusive ? I am confused because some Doctors say 12 weeks?
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