Byssinosis not brown. Brown lung can ultimately result in narrowing of the airways, lung scarring and death from infection or respiratory failure. Patient history should reveal exposure to cotton, flax, hemp, or jute dust. Diagnostic tests include a lung function test and a chest x ray or CT scan. Measurable change in lung function before and after working shifts is key to diagnosis. Patients suffering from byssinosis show a significant drop in FEV1 over the course of work shift. Chest radiographs show areas of opacity due to fibrosis of the pulmonary parenchyma. Affected workers should be offered alternative employment. Continued exposure
Newcastle disease Newcastle disease Newcastle disease is a contagious viral bird disease affecting many domestic and wild avian species; it is transmissible to humans. It was first identified in Java, Indonesia, in 1926, and in 1927, in Newcastle-upon-Tyne, England (whence it got its name). However, it may have been prevalent as early as 1898, when a disease wiped out all the domestic fowl in northwest Scotland. Its effects are most notable in domestic poultry due to their high susceptibility and the potential for severe impacts of an epizootic on the poultry industries. It is endemic to many countries. Exposure of humans to