Being board-certified means that in addition to going to medical school and doing a residency in family medicine, a doctor has also passed an additional rigorous examination.
Silicosis (previously miner's phthisis, grinder's asthma, potter's rot and other occupation-related names) is a form of occupational lung disease caused by inhalation of crystalline silica dust, and is marked by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs.
Plague is caused by the bacteria Yersinia pestis. Rodents, such as rats, carry the disease. It is spread by their fleas. People can get the plague when they are bitten by a flea that carries the plague bacteria from an infected rodent.In rare cases, you may get the disease when handling an infected animal.lague is caused by the bacteria Yersinia pestis. Rodents, such as rats, carry the disease. It is spread by their fleas. People can get the plague when they are bitten by a flea that carries the plague bacteria from an infected rodent. In rare cases, you may get the disease when handling an infected animal.