George, a 15-year-old high school soccer player is diagnosed with infectious mononucleosis. what is the rationale for instructing him and his parents/caregivers that he should not participate in any type of "contact" sports or activities?

Mononucleosis causes splenomegaly - contact sports can cause the spleen to rupture

Explanation:

Infectious mononucleosis is often referred to as Kissing disease due to the fact that it can be contracted through saliva, it is associated with headache, fatigue, muscle weakness amongst others as symptoms to look out for.

It is usually caused as a result of Epstein-Barr virus (EBV).

However, it may leads to rupturing of spleen, when carrying out physical activities such as contact sports, heavy lifting of objects amongst others, which may be swollen from the infection.

you should try adrenaline. it kicks in in situations like this.