Asbestosis is a form of lung disease caused by exposure to asbestos. There is a usually a long period between exposure to asbestos and the development of symptoms, usually over 20 years. Common symptoms are breathlessness and a persistent cough.
Mesothelioma is a tumour of the lining of the lung often due to asbestos. As with asbestosis, there is a long period between exposure and the development of symptoms. Many cases develop 30 years (plus) after exposure. Common symptoms are breathlesness, chest pain and a presistent cough.