Getting EHAS approval post COVID

Does anybody have any knowledge or experience on getting EHAS approval after Covid recovery and not being contagious anymore but still test positive? EHAS does not address this situation on their website though CDC does tell you what to do to return to US with positive test.
Our grandson picked up Covid in his school and is done with his isolation but still comes up positive and they are due to fly in 10 days. It is a good chance he still will test positive two days before the flight. And of cause he is not vaxed yet being under 12.
Any thoughts?

What kind of a test did he take--PCR or antigen?? I understand that a PCR test, post Covid, will come up positive longer than an antigen test. If he took a PCR test, have him get an antigen test.

I believe they did Antigen because they got results right away.

OH, ok. Hopefully someone can help you, but I didn't think that SXM accepted proof of recovery..