A disease characterised by oozing of semisolid material in throat forming a tough membrane is
Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae. Symptoms include a sore throat, fever, barking cough, a grey or white patches develop in the throat. Diphtheria is usually spread between people by direct contact or through the air. It may also be spread by contaminated objects. In diphtheria, a semisolid material oozes in the throat which forms a tough, greyish, pseudomembrane that chokes the air passage causing shortness of breath. So, the correct answer is 'Diphtheria'.