How to cure 志贺痢疾杆菌?
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Howtocure志贺痢疾杆菌?Howtocure志贺痢疾杆菌?Howtocure志贺痢疾杆菌?鉴于志贺菌的免疫防御机制主要是分泌至肠粘膜表面的SIgA,而SgA需由活菌作用于粘膜局部才能诱发.因此,
How to cure 志贺痢疾杆菌?
How to cure 志贺痢疾杆菌?
How to cure 志贺痢疾杆菌?
鉴于志贺菌的免疫防御机制主要是分泌至肠粘膜表面的SIgA,而SgA需由活菌作用于粘膜局部才能诱发.因此,接种死疫苗防御志贺菌感染的试验已经放弃,现致力于活疫苗的研究.例如链霉素依赖株(streptomycin dependent strain,Sd)活疫苗是一种变异株,环境中存在有链霉素时始能生长繁殖.将其制成活疫苗给志愿者口服后因正常人体内不存在链霉素,该Sd株不能生长繁殖;但也不立即死亡,尚可有一定程度的侵袭志愿者肠粘膜而激发局部免疫应答,产生SIgA.同时,血清中的IgM、IgG特异抗体也增多.Sd活疫苗的免疫保护具有特异性.目前已能产生多价志贺菌Sd活疫苗.又多种杂交株活疫苗也在研究之中.如将志贺菌的大质粒导入另一弱毒或无毒菌中,形成二价减毒活疫苗.曾被选为研究对象的有宋内志贺菌与伤寒杆菌Ty2la的杂交疫苗等.
治疗志贺菌感染的药物颇多,但菌很易出现多重耐药菌株.同一菌株可对5-6种甚至更多药物耐药,给防治工作带来很大困难.
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How to cure 志贺痢疾杆菌?
目前国内最常见的细菌性痢疾病原菌是福氏痢疾杆菌还是志贺痢疾杆菌
痢疾杆菌
Up to now scientists have not found how to cure patients of that disease.译成中文
the best way to cure myopia?In China,many people have taken laser operation to cure myopia,and I am thinking about it for myself.But,Is it safe without any sequela?How the manner to cure myopia develops internationally?
Cure
to cure sometimes,to relieve often,to comfort
Time is the best medicine to cure the wound.
all attempts by the cure to announce什么意思?
The reaponsibility of doctors is to prevent and cure d_______
can you find a way to cure this_(ill)
C___ of bird flu are difficult to cure at present.
how many years will have to pass___scientists succeed in providing a cure for cancer?a,before b.until 为什么选before而不是until.放进去都能翻译通啊?
痢疾杆菌是细菌?
怎样培养痢疾杆菌
痢疾杆菌属于分解者吗?
痢疾杆菌的细胞结构
no matter how you want to love me..no matter how you want to love me.just tell me you won't leave me.back to my side .i'm waiting for you .let me cure your wound..i'll tereat you well.give a chance for us to continue our love.