Clinical criteria Upper respiratory tract illness with sore throat. Low-grade fever (above is rare). An adherent, dense, grey pseudomembrane covering the posterior aspect of the pharynx; in severe cases, it can extend to cover the entire tracheobronchial tree.
Clinical criteria Upper respiratory tract illness with sore throat. Low-grade fever (above is rare). An adherent, dense, grey pseudomembrane covering the posterior aspect of the pharynx; in severe cases, it can extend to cover the entire tracheobronchial tree.