He could be removed from the athletic team.
Also:
Acne
Breast development in men.
<span>myocardial infarction (Heart attack)</span>
Liver cancer
Some diseases are lupus, Multiple Sclerosis, <span>Spina bifida.<span>Spinal stenosis. </span></span>
There are instances
that when we are exposed to virus or bacteria, the antigen A in our body try to
fight but still we get sick, take some medication and we are then healed. Then,
another exposure to a new virus or bacteria, the antigen B reacts weakly for
our immune system do not recognized the foreign pathogen that invade the body
resulting to slight sore throat after visiting your sister at school.
I would tell them to tell a trusted adult and use a helpline like nsvrc.org as a resource. Be there to support them during the aftermath as it will take a toll on their mental health.