Pneumococcal pneumonia 1. Some authorities predict that certain forms of disease may become untreatable. Medical community slow to respond. Bordetella pertussis , a small encapsulated gram - coccobacillus. Characteristics a. Was among most lethal diseases of childhood.
Humans only reservoir.
Vomiting and convulsions. Symptoms produced from tracheal cytotoxin which damages pseudostratified ciliated epithelial cells. Evolutionarily very plastic. Humans NOT only reservoir.