第1118章 牛痘
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“听夏公的意思,此法不是害人,而是果真可行?!”孙思邈震惊不已,胡子都一颤一颤的,问道。龙腾小说网ltxs520.comm.手机最省流量,无广告的站点。
“不不不,方才我已然说了,人痘不行。人痘的痘苗毒性太大。”夏鸿升说道:“这种法子思路是对的,但是操作起来并非如此。”
众人好似看到希望,立时都围了过去。连李世民也从案几后面走了出来,到了夏鸿升的跟前,惊问道:“贤婿当真有法子可治此疾?”
夏鸿升摇了摇头,说道:“身患此疫的人若是能够自愈,脸上会留下密密麻麻的麻子,故而此病名为天花。天花没有能治愈的法子。然,虽说无药可医,但却有法可预。”
“贤婿快快道来!”李世民连忙说道。
“得过天花的人,日后就不会再染上这种病了。这是因为他的体内已经有了抗体,可以再日后抵抗这种病。因此,若是让没有得过天花的人,也产生这种抗体,就可以抵抗天花,避免被传染。”夏鸿升说道:“为要想产生抗体,唯一的办法就是让这个人得了天花这种病,然后再自愈,才能产生。那么我们的办法就是,让他感染轻度的可以自愈的天花,既不会让他发病得那么剧烈,又产生了抗体,日后便不会再感染天花。只要不会感染,那就算是没有治愈之法,也不怕了。”
“抗体?”孙思邈不解的问道,继而眼中闪现出一片光彩来。
呃,这年头连细菌、病毒都没法说清,怎么解释抗体呢?
“这个所涉及得东西太多了,且极为高深,我也只是一知半解,说不太清楚。若是道长有兴趣,日后可一起研究研究。”夏鸿升说道:“眼下还说天花,方才孙道长所言的人痘之法,亦是这么个思路,利用人感染天花自愈之后,就不会再被感染这种特性,人为的使人主动感染天花病毒……呃,天花,然后让其自愈,从而获得不会再感染天花的能力。”
“得了天花尚且无法可治,全凭听天由命,再去主动的染给旁人,那这个旁人就能自愈了?”何太医摇头表示不同意。
夏鸿升点了点头,说道:“故而我才说这个思路是对的,但是操作的法子不对。若要种痘,必须得减毒。若是不减毒,那便不算是种痘,而是传染了。人痘就是没有减毒,或是减毒太少,故而感染他人之后仍会使人染病。
”减毒……“孙思邈一愣,好似发现了新大陆一般,眼珠迅速转了几下,问道:”那若是不用病患痘疮中的,而用其自愈之后的结痂,碾成粉末吹入鼻中,亦不刺破他人的鼻肉,是否可减少些天花之毒?“
不愧是神医,这心思就是转的快!
却听孙思邈又道:”那若是以此法染人,再取所染之人的痘痂施以旁人,那这第三人身上的天花之毒,岂不是更少?取这第三人之痘痂,所染第四人身上的天花之毒更少。其苗传种愈久,则药力之提拔愈清,人工之选炼愈熟,痘毒汰尽,精气独存!“
”话是这么说没错。“夏鸿升点了点头,惊叹于孙思邈的医学思维。这思路不就跟后世里的定向减毒选育差不离了么!
”但这终究是不妥。“夏鸿升说道:”减毒太轻,则易感染天花,减毒太狠,又不足以致病。这中间的度很难把握,从人身上提取痘苗,也有其他的风险。我所言的种痘,是牛痘。“
”牛痘?“何太医大为不解:”这牛莫非也会得豌……天花?“
”正是。“夏鸿升点头道:”牛得了天花之后,往往症状很轻,只是出些许疱疹而已。人亦会从牛身上染上牛天花,只不过牛天花毒性很弱,染给人之后,人会有天花的一些轻微症状,却不足以再染给旁人,更不足以致命。故而,从牛身上取痘苗,种入人身、被种下牛痘的人,会发烧,出疹,不过都很轻微,十来日之后,就可自愈。自愈之后,从此便不会再感染天花。自然,有些人自身有缺陷,即便是毒性很低的牛痘也会让他染上天花,不过这几率就十分低了,千百个人里面也不定会有一个。“
”这……孙道长方才听说的法子,已经是耸人听闻了,贤婿所言的听之更是匪夷所思。“李世民皱着眉头,说道:”这牛身上的病患,到了人身上,还能给人预病?“
”回岳父大人,并非全都如此。只是天花这一种。“夏鸿升说道:”多数动物身上的病患,到了人身上是更为致命的。“
李世民和孙思邈,还有何太医三人面面相觑,对夏鸿升所说的方法很是疑惑。
”反正眼下也没有其他的办法,大可以死马当活马医,权且试验试验。“夏鸿升见三人发愣,于是说道:”牛痘只在母牛身上,去天花传播之地,找牛乳周围有溃疡的母牛,用针挑出浓浆,然后种于人的手上臂,接种后三日左右,人身上当会出现红丘疹,五日左右,丘疹形成疱疹,八日左右转为脓疱,十二日左右形成棕色痂盖,十八日后痂盖脱落,遗留瘢痕。此为种痘成功之表现,日后此人便不会再被染上天花了。另外,染上天花之后,往往十二日之后才会发病,故而若是能在接触天花病患后的第二日立即接种牛痘苗,天花可不发病。三到七日后接种,多数也可不发病,然十日之后再取接种,便无效了。自然,此法亦有风险,比方说伤口感染化脓,人败血而死,亦有可能,只是概率极低,只要做好接种时伤口的清洁,千人中也不一定会有一例。“
李世民看看孙思邈,又看看何太医,眉头一拧,果断道:”何太医,速速记下此法,越详尽越好,立刻传于邕州,试验此法!若真有效,日后大唐百姓当不再惧怕天花了!“
”此术要将牛痘浓浆种于人身皮下,操作有半分不当便生意外。贫道要亲赴邕州!“孙思邈当即说道。
“道长不可!”李世民与夏鸿升异口同声。
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