The development of a pseudomembrane on the tonsils and throat is characteristic of The development of a pseudomembrane on the tonsils and throat is characteristic of pertussis. pneumococcal pneumonia. streptococcal pharyngitis. tuberculosis. diphtheria.

Diphteria

Explanation:

Based on the scenario being described within the question it can be said that this is characteristic of Diphteria. This is an infection that is normally caused by the bacterium known as Corynebacterium diphtheriae and causes thick pseudomembrane that covers the back of the throat including the tonsils. This infection can cause difficulty breathing, heart failure and many times even death.