There are two ways to treat an infectious disease:
- To reduce the effects of the disease.
- To kill the cause of the disease.
For first we can take medicine that bring down fever, reduce pain or loose motions. We can take bed rest.
In the second way ew take medicines which will block the pathways of some biochemical life process which is peculiar to the pathogen.
Hope this helps you. Good luck$%
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Basically two approaches are adopted to treat an infectious disease. These are:
- To reduce the effects of the disease: Depending on the symptoms, taking medicines to reduce fever or pain and complete rest should be taken to conserve energy. But it will not kill the disease causing organisms like bacteria, virus or fungi or protozoan.
- To kill the cause of the disease: For the complete recovery it is essential that medicines specific to disease causing microbes are taken. For example, treating of bacterial diseases, medicines or antibiotics that block the bacterial synthesis without affecting their own have to be taken by the patient. There are drugs that kill protozoan such as malarial parasite. But viruses have their own biochemical mechanisms. They enter human cells and use human machinery for their life processes. Antiviral drugs are available now like drug against HIV infection.
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A disease can be treated either by reducing the effect of the disease or by killing the cause of the disease.
Every infectious disease shows some characteristic symptoms in the form of inflammation, fever or chills. In order to reduce the effect of a disease, one can take medicines. Medicines reduce the symptoms associated with the disease.
Symptom-directed treatment does not help to kill pathogens associated with the disease. Pathogenic microbes can be killed by using medicines or antibiotics. The drug used against different groups of pathogens such as bacteria, viruses, protozoa, fungi etc. would be different. The drug or the medicine should kill the pathogen, without affecting the metabolism of the host. Antibiotics can be used to cure bacterial infections as these chemical compounds block the important biochemical pathways of bacteria.
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