|
Child-Day-Care-USA.com |
 |
Child Toys Games Education and Care |
|
|
Unique Home Furniture, Home Decorating and Home Decoration Store
Infectious Disease Terized: infectious disease terized Types of Heart Disease. During the early 1900's infectious disease terized types of heart disease were the greatest scourge, making up much more than half of all the cardiac cases. Today they account for less than a fourth of all cases in the United States and other countries that are equally prosperous and equally able to control infectious disease terized diseases. The two major infectious disease terized heart diseases in the United States are rheumatic heart disease and syphilitic heart disease.
Vaccination was in general very favorably re¬ceived, and its application became widespread and has continued with only minor modifications. Elucidation of the fundamental principles under¬lying Jenner's vaccination, and the commonly observed refractoriness to a second attack of many of the infectious disease terized diseases, was, however, necessarily dependent on the discovery of the specific microbic etiology of infectious disease terized disease and the exploration of the relation between these pathogenic agents and their host. It was then possible to show, as Louis Pasteur did from 1877 to 1885 in his studies on anthrax, chicken cholera, swine erysipelas, and rabies, that prophylaxis of infectious disease terized disease by artificial inoculation is a generally applicable phenomenon and not one con¬fined to smallpox.See Also Cause Disease And Com¬peting:In agriculture a pest is any organism that damages or destroys plants useful to man and the term is taken to apply to harmful insects, mammals and birds. Crops also suffer from micro-organisms that cause disease and com¬peting wild plants or weeds.
The important groups of pesticides are insecticides, fungicides and nematicides - for the eelworms which are microscopic nematodes feeding on plant roots. Her¬bicides are chemicals used for weed control. In tropical and subtropical areas of the world it is the insecticides that tend to be more important. But in the USA (which uses as much agricultural chemicals as the rest of the world together) herbicides are more widely applied than pesticides.
Thus, this kind of 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 of rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control of 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% of all of 3,000 patients with Signs or symptoms of heart disease.
On The Other Hand See Fungal Disease Reduced:Geon is now so rare that its price puts it beyond the reach of most people.The Atlantic salmon [Key], once very common in London's River Thames, was eliminated from these waters by 1870. It has, however, returned in recent years. A new hazard for this species has been the dis¬covery, by Danish and Greenland fishermen of the salmon's main feeding grounds in the Atlantic, not far from the coast of Greenland. Massive and indiscriminate netting of imma¬ture salmon in these waters led to an outcry from land-based net fishermen and rod-and-line anglers in the 1960s when catches declined. At the same time a fungal disease reduced the numbers of salmon still further.
Vaccination is still considered the most effective method of disease prevention in countries where infection is rare and frontiers easily closed. Elsewhere, vaccination has reduced the risk, although for success the strain of the infection must be effectively typed. Vaccination has, for instance, greatly reduced the impact of foot-and-mouth dis¬ease in Europe. |
|
|
|
|
|
|
|
|
|
© Copyright
2006. Child-Day-Care-USA.com |
|
