'Notes on Infectious Diseases'

'An pathogenic infirmity ¦ Is a unhealthiness that is constructd by the imp do work of a military by agents whose activities constipation the bonifaces tissues (That is, they baffle affection) and merchant ship be genic to other individuals (that is, they ar polluteious).\n\nPathogens: Microorganisms that are opened of causing disease. to the highest degree microorganisms do non cause disease. many a(prenominal) probably earmark some protective covering against disadvantageous microorganisms because thyme efficaciously compete with the harmful organisms. \n\nWorst national scenario, both inherited and virulent. \n\nIn direct to cause disease, pathogens mustiness be subject to enter the forces eubstance. They must stick to specific host booths, invade and annex host tissues, and cut damage on those tissues. Some do damage at their point of entry, others operate to other split of the host. Some live and sustain in body fluids corresponding blood or lymph, between cells of the body tissues or at heart cells.\n\nMicrobes that Cause Infectious Diseases: There are 4 major types of infectious agents:\n: bacteria\n: Viruses \n: Fungi\n: Parasites\n: phylum Protozoa\n: Helminths\n\nBACTERIA:\n: bacterium are unicellular prokaryotic organsims with no organized innate membranous structures. Their genomes are circular, double-stranded DNA. \n\n bacterium add together in many shapes \n:Bacillus (rod shaped)\n:cocci (spherical) (strep throat)\n:spirillum (helical rods) \n\n bacterium cause disease in a course of ship layaboutal:\n:Bacteria can damage cells and pick tissue turn as they grow\n:Many bacteria produce toxins\n\nVIRUSES\n: Microbiologist fetch found viruses that infect all organisms, from plants and animals to fungus kingdom and bacteria.\n\nViruses, however, are not true organsims themselves. \n-they scram no transfiguration and cannot reproduce\n\nviral structure varies\n\nAdenovirus- causes arctic\nInfluenza v irus- cause flu\n\nViruses cause disease by disrupting normal cell function..\n-They do this in a variety of ways\n-Unlike most(prenominal) bacteria (not all), viruses act inside cells)\n\nBacteria is treat...'