Most people with malignant mesothelioma have worked on jobs
where they breathed asbestos. Usually, this involves men over 40
years of age. Others have been exposed to asbestos in a household
environment, often without knowing it. Interestingly, the number of new
cases of mesothelioma has been relatively stable since 1983, the same
time that the restrictions on asbestos were instituted by the U.S.
Occupational Safety and Health Administration (OSHA). In Europe,
the number of new cases of mesothelioma continues to rise.
