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Doctors' Answers to "Frequently Asked Questions" - Bronchitis
Answer: Bronchitis is usually caused by bacteria in your own system. It is usually several bacteria, although there is professional disagreement here. In general, it is not contagious, but it is treated by antibiotics. This actually is more difficult to treat than pneumonia and may take several weeks of antibiotics to cure.
Answer: Bronchitis does not have a genetic component. The most common cause of Chronic Bronchitis is cigarette smoking. It cannot spread from people to people.
Answer: If it is the chlorine gas which is the cause, this will be fairly irreversible-similar to gas damage to doughboys in WW1. Pulmonary tests including diffusing capacity will be necessary to determine this. I would ensure that she does not have any reversible causes like mild asthma, etc. Treatment of these could improve her aerobic functioning-treatment of the chlorine injury will be futile.