COLLECTION ABECASIS / SCIENCE PHOTO LIBRARY COLLECTION ABECASIS / SCIENCE PHOTO LIBRARY
Diphtheria serum preparation. Diphtheria is a disease caused by the gram-positive Corynebacterium diphtheriae bacteria. It is a contagious infection that mainly affects the nose and throat. Less commonly, it can also affect the skin. Before vaccination programmes were introduced, diphtheria was a very common condition and one of the leading causes of death in children.
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