Infectious vs Noninfectious DiseasesCommunity Unit School 感染性与非感染性疾病社区学院文档资料.ppt
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1、1.Infectious-caused by microorganisms,Pathogens-disease causing organismToxins-poisons produced as a byproduct of the bacterias metabolism,botulism,Popped up lid,1.Infectious-caused by microorganisms,Pathogens-disease causing organismToxins-poisons produced as a byproduct of the bacterias metabolism
2、 Physically destroy cells,remove nutrients,etc.,tapeworm,Ringworm(fungus),bacteria,Chicken pox,1.Infectious-caused by microorganisms,Pathogens-disease causing organismToxins-poisons produced as a byproduct of the bacterias metabolism Physically destroy cells,remove nutrients,etc.Passed from one host
3、 to another,1.Infectious-caused by microorganisms,Pathogens-disease causing organismToxins-poisons produced as a byproduct of the bacterias metabolism Physically destroy cells,remove nutrients,etc.Passed from one host to anotherMost seen for the first time with microscopes,How do we protect ourselve
4、s against pathogens?,Vaccines introduce killed or weakened strains of a pathogen(virus or bacteria)that can stimulate our own immune system to prevent infection.,Louis Pasteur(1822-1895),His experiments showed that microorganisms do not arise from non-living matter(spontaneous generation)and that ba
5、cteria can cause disease.wine industry-microbe+fruits/grains-alcoholWool industry-anthrax bacteria vaccineSilk industry-parasite causing worms to die,If we do become infected,antibiotics can be used to attack and destroy bacteria(works only on prokaryotes!),Other pathogens can be treated with specif
6、ic medications-like ring worm(fungi=athletes foot).,The best way to protect yourself against viral(and other)diseases is to avoid getting infected and keep yourself healthy so your immune system can protect you if you do!,Controlling Bacteria,Sterilization-boiling,frying,steaming(kills endospores if
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