Final answer:
Transplant patients on immunosuppressive drugs to prevent organ rejection are especially susceptible to infections, including CMV, which can lead to serious complications.
Step-by-step explanation:
The medications that transplant patients need to take for the rest of their lives to prevent organ rejection can result in a high susceptibility of infection. These medications are immunosuppressive drugs that reduce the ability of the immune system to fight off infectious agents, also making the patient more prone to diseases like CMV (cytomegalovirus) infection. With a suppressed immune system, the already challenging task of managing transplant health becomes even more difficult due to the increased risk of infections that can lead to serious complications such as transplant rejection, liver damage, and even death.