mostly by injection or by taking orally, let the dead or attenuated pathogens enter the body to trigger an immune response, it is not an infection of the disease... An infection of a disease is a naturally acquired active humoral immunity, which is the infection caused by the contact with the pathogen...这些你自己去翻译吧。这是我写的, 不是什么抄什么那些CDC的糊弄人的烂文章的。。当然你们愿意信什么, 关我屁事🤣。
真心劝你,有时间就去认真地看一下真正的医学书, 医学文献, 免疫学典籍, 别整天看那些忽悠人的洗脑文, 傻乎乎的被别人洗了脑, 还帮别人数钱🤣。就这一贴了, 我不再回你的贴了, 你好自为之。
我英文语法很烂, 写的东西肯定有语法错误, 你们就将就着看吧