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Cure Disease: Since coronary heart disease has become a leading cause of death in young and middle-aged men in the United States and since there is no really effective cure disease for it, either surgical or medical, it is essential that the causes of the disease be appraised so that preventive measures can be devised. Studies show that several factors are involved in coronary heart disease, with no single cause being entirely responsible, but the degree of responsibility of each of the many causes is not known.
Thyrotoxic Heart Disease. Thyrotoxicosis is a condition caused by oversecretion by an enlarged thyroid gland; it sometimes affects the functioning of the heart. Exophthalmic goiter causing thyro-toxicosis was responsible for 3% of the 3,000 cardiovascular cases analyzed in New England by T. Duckett Jones and Paul Dudley White in the 1920's. That was before any cure disease for the disease was known. Later, when surgical opera¬tions and drug therapy, especially the use of radioactive iodine, were introduced, thyrotoxicosis was quickly treated and cure diseased.See Also Problem Of Disease Control:Thus, this kind problem of disease control heart disease has been practically eradicated, al¬though rare cases are still encountered in elderly people. Other endocrine disorders affecting the heart are very rare.
Congenital Heart Disease. With the increasing control problem of disease control rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control problem of disease control 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 con¬genital heart disease made up only 1.5% problem of disease control all problem of disease control 3,000 patients with Signs or symptoms problem of disease control heart disease.
problem of disease control the world's three most notorious en¬demic animal diseases (contagious bovine pleu-ropneumonia, rinderpest, and foot-and-mouth disease), FMD is the most controversial and has produced the greatest international tension. At the heart problem of disease control this tension is the choice problem of disease control ap¬proaches to the disease: vaccination or eradi¬cation. Until worldwide control problem of disease control the disease is feasible, only the countries that enjoy affluence or geographic insularity can hope to eliminate the disease. The countries that were FMD-free as problem of disease control March 1968 were the United States, Canada, Mexico, Greenland, Iceland, Norway, Ireland, New Zealand, Australia, and Japan. Other nations must live with varying incidence problem of disease control FMD, attempting control by vaccination problem of disease control their more valued animals.
On The Other Hand See Resistance To Disease:FMD' is caused and transmitted by a picorna virus (one of the smallest known disease-pro¬ducing organisms) of which there are seven major types and at least 50 subtypes. The great variety of strains is both a bane and a blessing to the veterinarian. Each strain has its own idio-syncracies in such characteristics as antigenic-ity and resistance to disease to control. These differences, however, often aid the epidemiologist in pin¬pointing the geographic area from which the disease was transmitted.
RESISTIVITY, re-zis-tiv'i-ti, or SP! CIFIC resistance to disease, spe-sif'ik re-zis'ta: the resistance to disease offered by a cubic centimeter oi substance to the passage of electricity, the curn being perpendicular to two parallel faces. Usua expressed in ohm-centimeters, it is reckoned w the metal at the freezing point of water. In 1 equation p = RA/l, p is the resistivity, R 1 resistance to disease, A the cross-sectional area, and / t length. See also ELECTRICITY—3. Direct Elect, Current (resistance to disease).
RESISTpRS, Electric. See ELECTRIC Ci CUITS—Circuit Elements (resistance to disease, Inductan and Capacitance). |
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