|
Child-Day-Care-USA.com |
 |
Child Toys Games Education and Care |
|
|
Unique Home Furniture, Home Decorating and Home Decoration Store
Manner Of Disease: Thus, this kind manner of disease 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 manner of disease rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control manner 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 con¬genital heart disease made up only 1.5% manner of disease all manner of disease 3,000 patients with Signs or symptoms manner of disease heart disease.
Since coronary heart disease has become a leading cause manner of disease death in young and middle-aged men in the United States and since there is no really effective cure for it, either surgical or medical, it is essential that the causes manner of disease 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 manner of disease responsibility manner of disease each manner of disease the many causes is not known.See Also Where The Disease Is Endemic:Other diseases, including bovine tuberculosis, brucellosis and swine fever, which once caused serious stock losses and even human illness, are now wholly or partly wiped out in most advanced countries. But there are always new risks and a close watch has to be kept on those areas where the disease is endemic husbandry is primitive and disease endemic.
The United States has fought FMD since 1900, first with a system of federal inspection and quarantine that made impractical the importing of any susceptible creatures except zoo animals. Although this action controlled one source of epidemics, it had to be reinforced in 1930 with a prohibition against the importation of meat (fresh, chilled, or frozen), hides, and biologies from any nation in which FMD is endemic. Nation¬wide surveillance, however, became increas¬ingly difficult as transportation improved. The St. Lawrence Seaway, for example, has created numerous inland danger points, and jet travel has increased the possibility of a traveler carry¬ing the disease from the opposite hemisphere.
On The Other Hand See Supply To Disease:Coronary Heart Disease. Coronary heart disease is responsible for about 55% of all the deaths due to heart disease in the United States. It is caused by atherosclerosis of the coronary arteries, the small but vital blood vessels that supply the heart muscle with blood and oxygen. Atherosclerosis is the most common and most important kind of arteriosclerosis. The term "atherosclerosis" is derived from two Greek words, athero, meaning soft material or pudding, and sclerosis, meaning hardening. Both of these processes involve the inner lining, or endothelium, of the large and medium-sized arteries through¬out the body. It should be noted that young and middle-aged men are generally more prone to atherosclerosis than women. This is because women, until they reach menopause, are rela¬tively well protected by female hormones.
When the distance to remote sources m construction too expensive for a single commui to finance, regional water-supply systems w set up. The earliest in the United States wa: 1895—the Metropolitan Water District of Ma; chusetts, serving Boston and suburban commt ties within 10 miles of the city. It origin; served 18 communities with a population be] 900,000 and now serves 30 communities wit population of 1,600,000. (Consult Hazen, Jc nal of the American Water Works Associati vol. 50, p. 1137, 1958.)
Beginnings of Water Treatment.—Of mote antiquity is the appreciation of the relat of the drinking water supply to disease. |
|
|
|
|
|
|
|
|
|
© Copyright
2006. Child-Day-Care-USA.com |
|
