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【正文】 immune response to the original toxin. Examples of toxoidbased vaccines include tetanus and diphtheria . Rogers State University 25 4. Subunit vaccine Rather than introducing an inactivated or attenuated microanism to an immune system ,a fragment of it can create an immune response. A subunit vaccine is posed of a purified antigen molecules or antigenic determinant that is separated from the virulent anism. Rogers State University 26 Immunologic adjuvant （ 免疫佐劑 ） In immunology, an adjuvant is an agent that may stimulate the immune system and increase the response to a vaccine, without having any specific antigenic effect in itself. An immunologic adjuvant is defined as any substance that acts to accelerate, prolong, or enhance antigenspecific immune responses when coadministered with specific vaccine antigens. Rogers State University 27 Important morphemes ? parasitparasite ectoparasite, endoparasite, parasiticide ? bacteribacteria bactericide, bacteristat, bacteriolysin, bacteriophage ? coccus staphylococcus, streptococcus ? myc/o, mycosis, mycin mycology, bronchomycosis, streptomycin, erythromycin Rogers State University 28 ? zymenzyme, fermentation zymogen, zymosis, ? penicillpenicillin penicillamine, penicillinase ? fungfungus fungal, fungicide ? germpathogen germicide ? septic， sepdecayed， rotten sepsis， septicemia ? toxi， toxopoison toxin， toxoid， cytotoxic， intoxication ? biolife， living things biocatalysis， biologist， symbion Rogers State University 29 Term analysis ? bacteriemia, septicemia, toxemia, pyemia ? endotoxin， exotoxin, antitoxin ? photoautotroph, photoheterotroph chemoautotroph， chemoheterotroph ? thermophile, thermostat ? aerobic microanism, anaerobic microanism
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