Reasons for the increase of pertussis cases over the past three decades. Concept introduction: Pertussis disease is caused by microorganism Bordetella pertussis which is a gram-negative coccobacillus bacterium. It has filamentous hemagglutinin on its surface which helps in adhering it to the surface of epithelial cells. It secretes pertussis cytotoxic and a tracheal cytotoxin. The layer of ciliated epithelial cells lining the respiratory tract is damaged.

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Chapter 21.4, Problem 9AYP

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Reasons for the increase of pertussis cases over the past three decades.

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Pertussis disease is caused by microorganism Bordetella pertussis which is a gram-negative coccobacillus bacterium. It has filamentous hemagglutinin on its surface which helps in adhering it to the surface of epithelial cells. It secretes pertussis cytotoxic and a tracheal cytotoxin. The layer of ciliated epithelial cells lining the respiratory tract is damaged.

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