Diphtheria is a serious bacterial infection affecting the mucous membranes of the nose and throat of preschool children, caused by the bacterium corynebacterium diphtheria. Sore throat, fever, swollen glands and weakness are the main symptoms of diphtheria. But the hallmark sign is a sheet of thick, gray material covering the back of the throat. Schick test is the test used to identify the diphtheria. Prevention of occurrance of disease is by immunization with DPT vaccination and treatment of the disease is by broad spectrum antibiotics.

Keywords: Bacteria; Corynebacterium Diphtheria; Diphtheria; Immunization; Infection; Preschool Children; Schick Test; Transmission; Vaccines.