Medicinal Chemistry-Fusion of Traditional and Western Medicine

Volume: 1

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Medicinal Chemistry - Fusion of Traditional and Western Medicine is a textbook intended for students taking courses in the various fields of medicinal chemistry, pharmacy, medical and dental ...
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Infectious Diseases

Pp. 399-413 (15)

Robert E. Smith

Abstract

Infectious diseases can be caused by worms, protozoa, fungi, bacteria, viruses and even proteins (prions). Organisms, viruses and prions can be classified by their infectivity, or their ability to enter, survive and multiply in a host. There are seven classes of viruses, based on their DNA or RNA. By number, 90% of the cells in the human body are bacteria. Even though our lives depend on symbiotic bacteria, it is important that they stay in their proper places in our human bodies, or ecosystems. By the mid-1980s strains of S. aureus emerged that were resistant to common antibiotics. The most common bacterial disease is tuberculosis, caused by the Gram positive bacterium called Mycobacterium tuberculosis. Fungi, protozoa and multicellular organisms are eukaryotes and some of them are pathogenic. Multicellular parasites include four species of Schistosoma, a flatworm which causes schistosomiasis, which is second in importance only to malaria, with hundreds of millions infected worldwide. In addition to schistosomiasis, helminths can cause ascariasis, dracunculiasis, elephantiasis, hookworm, lymphatic filiaruasis, onchocersiasis, and trichuriasis.

Keywords:

Infectious diseases, viruses, bacteria, fungi, S. aureus, Mycobacterium tuberculosis.

Affiliation:

Adjunct Assistant Professor Park University and Consultant Science Advisor United States Food and Drug Administration (FDA) USA