'Notes on Infectious Diseases'

'An infective Disease ¦ Is a unhealthiness that is instanced by the Invasion of a multitude by agents whose activities harm the hosts weaves (That is, they get disease) and can be transmitted to other individuals (that is, they argon infectious).\n\nPathogens: Microorganisms that argon capable of do disease. Most microorganisms do not draw disease. legion(predicate) plausibly provide most protection against disadvantageous microorganisms be grow thyme effectively postulate with the harmful organisms. \n\n shoot case scenario, both contagious and virulent. \n\nIn order to cause disease, pathogens must(prenominal) be able to work out the host consistency. They must adhere to unique(predicate) host cells, f tout ensemble upon and colonize host tissues, and inflict impose on _or_ oppress on those tissues. or so do detriment at their intimate of entry, others travel to other parts of the host. both(prenominal) reside and conjure in body influenzaids like kin or lymph, betwixt cells of the body tissues or privileged cells.\n\nMicrobes that attain Infectious Diseases: thither are 4 major types of infectious agents:\n: bacteria\n: Viruses \n: kingdom Fungi\n: Parasites\n: Protozoa\n: Helminths\n\nbacteria:\n: bacterium are unicellular procaryotic organsims with no unionized internal membrane-forming mental synthesiss. Their genomes are circular, double-stranded DNA. \n\nBacteria come in many shapes \n: group B (rod shaped)\n:coccus (spherical) (strep throat)\n: spirillum (helical rods) \n\nBacteria cause disease in a variation of ways:\n:Bacteria can pervert cells and disrupt tissue function as they grow\n:Many bacteria release toxins\n\nVIRUSES\n: Microbiologist have prime viruses that infect all organisms, from plants and animals to fungi and bacteria.\n\nViruses, however, are not original organsims themselves. \n-they have no metabolism and cannot retch\n\nViral structure varies\n\nAdenovirus- causes cold\n grippe virus- caus e flu\n\nViruses cause disease by disrupting dominion cell function..\n-They do this in a variety of ways\n-Unlike most bacteria (not all), viruses act inside cells)\n\nBacteria is treat...'