Dear Doctor
I have done unsafe sex in Dec 2015 and I have tested hiv Elisa after 18 days result got negative but ratio is 0.017 and cutoff value is 0.207 . Second test I have done after 3 months in February 2016 and result got negative but ratio has been increased to 0.065 and cutoff is 0.265 . Again I have tested in June 2016 result got negative but ratio again increased, now 0.094 and cutoff value is 0.279 .
My question is why ratio is increasing ?
Is there any chance to infect? Please tell me am in safe zone are not?
Above result I got after 6 months.. Is this necessary to retest again after 3/6 months to confirm?
Please help me out of this
Thank you