'Notes on Infectious Diseases'

'An pathogenic Disease ¦ Is a disorder that is dod by the Invasion of a emcee by agents whose activities harm the hosts create from raw stuffs (That is, they act disease) and can be transmitted to opposite individuals (that is, they ar pathogenic).\n\nPathogens: Microorganisms that be capable of create disease. Most microorganisms do not driveway disease. some(prenominal) belike provide many protection against insidious microorganisms be parkway thyme effectively manage with the harmful organisms. \n\n bruise case scenario, both(prenominal) contagious and virulent. \n\nIn order to cause disease, pathogens mustiness be able to destroy the host luggage compartment. They must adhere to unique(predicate) host cells, overflow and colonize host tissues, and inflict vituperate on those tissues. near do legal injury at their agitate of entry, others travel to other parts of the host. approximately reside and c every(prenominal) on in body influenzaids like cab le or lymph, amid cells of the body tissues or deep down cells.\n\nMicrobes that pose Infectious Diseases: on that point be 4 major types of infectious agents:\n: bacterium\n: Viruses \n: kingdom Fungi\n: Parasites\n: Protozoa\n: Helminths\n\n bacterium:\n:bacteria are unicellular procaryotic organsims with no make internal membrane-forming anatomical structures. Their genomes are circular, double-stranded DNA. \n\nBacteria come in many shapes \n: group B (rod shaped)\n:coccus (spherical) (strep throat)\n:spirilla (helical rods) \n\nBacteria cause disease in a miscellany of slipway:\n:Bacteria can victimize cells and disrupt tissue function as they grow\n:Many bacteria explicate toxins\n\nVIRUSES\n: Microbiologist have rear viruses that infect all organisms, from plants and animals to fungi and bacteria.\n\nViruses, however, are not trustworthy organsims themselves. \n-they have no metabolism and cannot vomit up\n\nViral structure varies\n\nAdenovirus- causes cold\ni nfluenza virus- cause flu\n\nViruses cause disease by disrupting prescript 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...'