Which term describes individuals who have little resistance to a disease or foreign protein?

The term that describes individuals who have little resistance to a disease or foreign protein is "susceptible." This term is often used in immunology and public health to refer to a person's increased vulnerability to infections or illnesses due to a weakened immune response. Susceptibility can be influenced by various factors, including age, genetic predisposition, existing health conditions, or lack of prior exposure to a pathogen or vaccination.

In contrast, "immunized" refers to individuals who have been vaccinated or who have developed immunity through exposure to a pathogen, making them less susceptible to infection. "Resistant" describes individuals who have a robust immune response that effectively defends against pathogens. "Immune" indicates that an individual has developed immunity, either through vaccination or natural infection, allowing them to fend off specific diseases without becoming ill. Thus, "susceptible" stands out as the term that best captures the lack of resistance to disease or foreign proteins.