Which of the following is the etiological factor for the disease 'Bagassosis'?
Bagassosis is an occupational disease of the lung caused by inhalation of bagasse or sugar-cane dust. It is due to a thermophilic actinomycete. The symptoms consist of breathlessness, cough, hemoptysis and slight fever. If left untreated, there is diffuse fibrosis, emphysema, and bronchiectasis. By keeping the moisture content above 20% and spraying the bagasse with 2% propionic acid, bagasse can be rendered safe for manufacturing use. Ref: Park's Textbook of Social and Preventive Medicine, 19th edition, Page 661-662.
Cotton
Sugarcane fibres
Carbon paicles
Silica fibres