A high fever and a red rash covering most of the body develops in almost every case. Measles can also cause pneumonia, deafness, and inflammation of the brain and death. It is a relatively rare disease caused by infection with the bacteria Neisseria meningitides. It is a type of S. aureus different from most other bacteria because it cannot be treated by using common antibiotics. Some people that are infected never show symptoms at all.
Pertussis is a contagious disease caused by a bacterium.
It causes severe spells of coughing which can interfere with eating, drinking, and breathing. Some people who recover from pertussis may suffer from mental retardation. Plague is usually carried by rodents but can be spread to man by fleas. The disease is rare in the United States, but occasional cases do occur in the western region of the country. It can cause the muscles to become weak and therefore require the assistance of crutches to walk.