请学生物的筒子帮忙解一下惑
可以注射疫苗来预防细菌引起的疾病吗？
[寻梦者 (9-21 0:31, Long long ago)]
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什么细菌呢?理论上来说都可以,只要有相关疫苗[印象派 (9-21 0:35, Long long ago)] [ 传统版 | sForum ][登录后回复]2楼
谢谢， 我以前以为疫苗只对病毒有效因为， 听到的疫苗好像都是针对病毒的， 比如
乙肝病毒疫苗
艾滋病病毒疫苗（在研究吧）
SARS病毒疫苗
流感病毒疫苗
好像没有听到什么细菌疫苗的[贝佳斯代言人 (9-21 0:43, Long long ago)]
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(引用 贝佳斯代言人:谢谢， 我以前以为疫苗只对病毒有效因为， 听到的疫苗好像都是针对病毒的， 比如
乙肝病毒疫苗
艾滋病病毒疫苗（在研究吧）
SARS病毒疫苗...)其实对很多东西都有效的疫苗是致病原的温和形式(就是把什么病毒细菌加温,砍,剁,踩,总之让它不能function as normal)
但是这种废物病原作为外来入侵者,还是会引起免疫系统的反应.(所以打了疫苗之后多少会有些不舒服)
等这种废物病原被身体的免疫杀光的时候,免疫系统已经有了这种病原的资料(这小丫长的什么样,怎么干掉这小丫之类的)
哪天你真的不幸碰到了真家伙的时候,免疫系统就能在真家伙把你干掉之前干掉它了...
(so..无论是病毒还是细菌,只要它有相对的疫苗就ok了)[印象派 (9-21 0:54, Long long ago)]
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据说是不可以的。只有多洗手保持个人卫生才行。
[Aussie (9-21 9:27, Long long ago)]
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Professional OpinionBacterial infections activate our Immune system, and approximately two weeks after the start of an infection, antibodies are produced. These are proteins in our blood that help white blood cells to recognize the infectious organisms and to destroy them. This ability, to specifically recognize and destroy micro-organisms, is stored in the memory of the antibody producing cells, and this is what makes us immune to that particular infection. Next time those bacteria enter our body, they will be destroyed immediately and no longer can make you ill. This acquired immunity will not only result from an infection; it can also be induced by vaccination.
A vaccine is a weakened, killed or incomplete form of a micro-organism that cannot cause disease, but will result in the production of antibodies when it is injected in our body. As a consequence, the produced antibodies will protect us against that disease. Since our body can make antibodies against viruses and bacteria, we can get vaccines against viral and bacterial infections.
So why don't we vaccinate against all infectious diseases? And why do infectious diseases still exist? Several diseases can be caused by many different kinds of the same sort of bacteria. For instance, traveler's diarrhea is often caused by E. coli, but there are many different forms of E. coli, and when you have had one (which may have been bad enough to spoil your holiday) you are not yet protected against the rest. In that situation vaccination is not very efficient. Moreover, some bacteria are smart enough to evade our antibodies. They change their 'looks' constantly, so that antibodies produced to one variant are useless towards the next. When antibodies are powerless, vaccines are as well. And there is an economic aspect: vaccination is expensive, and especially in developing countries it is not possible to reach the majority of the population with vaccination programs. Vaccination is not completely without risk, and it would be unwise to inject everybody with all available vaccines, when the majority of those people have very little risk to ever get most of these infections. So when you live in a moderate climate, you will not be vaccinated against tropical diseases, unless you plan to travel in the tropics. Check out vaccination recommendations for travellers (source: CDC). And finally, for many infectious diseases a vaccine is not (yet) available. Vaccine development is one of the major research areas in medical microbiology[fool (9-21 15:44, Long long ago)]
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can but not very successful....bacteria are more complicated and they have antigen variation to make a shift into another form,
however, there are vaccines under developement, targeting on the more conserved antigenic part of a bacteria, or even an eukayotic system, or a parasite, or other ways of antigen presenting, such as DNA vaccine, but till today they are still in laboratory developement.......
for bacteria, the more successfully story was the antibiotics....
but there are some successful vaccines for bacteria infections, such as the one against tuberosus.....
since the word vaccine is derived from vaccinia, which is a virus.....[有话想说 (9-21 18:03, Long long ago)]
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(引用 有话想说:can but not very successful....bacteria are more complicated and they have antigen variation to make a shift into another form, ...)tuberculosis, correction[有话想说 (9-21 18:08, Long long ago)] [ 传统版 | sForum ][登录后回复]8楼