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Study Of Disease: Mycoplasmosis is a respiratory disease caused y the bacteria Mycoplasma gallisepticum. It is Iso known as air sac disease or chronic respira-jry disease. Those affected with the disease may how nasal discharge, watery eyes, and respira-)ry difficulty. This disease is study of diseaseten associated /ith other respiratory diseases. It is transmitted hiefly from infected hens to their chicks through le eggs. The disease can also be transmitted by ontact with infected individuals, but it spreads ery slowly in this manner. The disease can best e controlled by maintaining breeding flocks free f the disease by strict measures study of disease isolation and mitation. Chicks hatched from such flocks can egin life free study of disease the disease.
Marek's disease is primarily a disease study of disease young chickens from 2 to 5 months study of disease age. It is also known as jowl paralysis and neural lym-phomatosis. Nerve-tissue rumors that cause paralysis study of disease both legs and wings are the most common form study of disease this disease, but the tumors may also affect the viscera, eyes, and gonads. The disease is probably caused by a virus.
Thus, this kind study of disease heart disease has been practically eradicated, although rare cases are still encountered in elderly people. Other endocrine disorders affecting the heart are very rare.
Congenital Heart Disease. With the increasing control study of disease rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control study of disease high blood pressure, congenital heart disease will take second place. An interesting statistical fact is that in the 1920's, T. Duckett Jones and Paul Dudley White found that congenital heart disease made up only 1.5% study of disease all study of disease 3,000 patients with Signs or symptoms study of disease heart disease. |
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