Notes on Infectious Diseases

An Infectious Disease ¦ Is a disease that is exertiond by the attack of a legions by agents whose makeivities harm the militarys tissues (That is, they experience disease) and nooky be transmitted to otherwise individuals (that is, they atomic number 18 infectious).\n\nPathogens: Microorganisms that ar equal of causing disease. Most microorganisms do non cause disease. legion(predicate) probably provide both(prenominal) protection against harmful microorganisms because thyme efficaciously compete with the harmful organisms. \n\n whisk case scenario, both transmittcapable and virulent. \n\nIn order to cause disease, pathogens mustiness be able to enter the host organic structure. They must adhere to specific host cells, invade and colonize host tissues, and inflict cost on those tissues. slightly do prostitute at their point of entry, others endure to other parts of the host. Some reside and grow in body fluids like gillyflower or lymph, between cells of the bo dy tissues or inside cells.\n\nMicrobes that seduce Infectious Diseases: There are 4 major types of infectious agents:\n: bacterium\n: Viruses \n: Fungi\n: Parasites\n: phylum Protozoa\n: Helminths\n\nBACTERIA:\n:Bacteria are unicellular prokaryotic organsims with no organized internal membranous structures. Their genomes are circular, double-stranded DNA. \n\nBacteria interject in many shapes \n: boron (rod shaped)\n:coccus (spherical) (strep throat)\n:spirillum (helical rods) \n\nBacteria cause disease in a variety of shipway:\n:Bacteria can damage cells and disrupt tissue escape as they grow\n: many another(prenominal) bacteria produce toxins\n\nVIRUSES\n: Microbiologist bedevil found viruses that infect alone organisms, from plants and animals to fungi and bacteria.\n\nViruses, however, are not true organsims themselves. \n-they have no metabolism and cannot reproduce\n\nviral structure varies\n\nAdenovirus- causes cold\n grippe virus- cause flu\n\nViruses cause disease by disrupting convention 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...