A susceptible host may be characterized by which of the following factors?

A susceptible host is defined as an individual who is more likely to become infected by an infectious agent due to various factors that impair their ability to resist infection. Chronic illnesses significantly weaken the immune system and reduce its capacity to fend off pathogens. Conditions such as diabetes, cancer, HIV/AIDS, and other long-term health issues can create vulnerabilities, making individuals more susceptible to infections.

On the other hand, a strong immune system, youth with good nutrition, and an active lifestyle generally contribute positively to a person's ability to fight off infections. These factors enhance immunity and overall health, thereby reducing susceptibility to infectious agents. Chronic illnesses, however, directly compromise the body's defenses, solidifying their role in characterizing a susceptible host.