Which of the following is NOT a form of disease associated with plague patients?

Typhoidal is the correct choice as it is not typically associated with plague patients. The primary forms of the plague include pneumonic, bubonic, and septicemic.

Pneumonic plague involves the lungs and can be transmitted through respiratory droplets, presenting with severe respiratory symptoms. Bubonic plague is characterized by swollen and painful lymph nodes known as buboes, and is the most common form. Septicemic plague arises when the infection spreads to the bloodstream, causing systemic illness. In contrast, typhoidal disease is associated with typhoid fever, which is caused by Salmonella typhi, and is unrelated to the plague caused by Yersinia pestis. Hence, typhoidal does not fit into the category of plague-related diseases.