詼諧的語言,生動(dòng)的內(nèi)容一分鐘快速掌握科技最新動(dòng)態(tài)

>>本期節(jié)目音頻下載<<

Did Smallpox Vaccine Limit HIV?

Could the eradication of smallpox have been a factor in the spread of HIV? That’s the question posed by researchers in the journal BMC Immunology, who think that the vaccine might have offered partial protection against HIV. As smallpox was wiped out, fewer people received the vaccine. The HIV explosion followed.
研究學(xué)者在英國醫(yī)學(xué)委員會(huì)免疫學(xué)期刊上提出,天花的消滅會(huì)不會(huì)對(duì)艾滋病病毒的傳播產(chǎn)生影響。他們認(rèn)為,天花疫苗很有可能對(duì)艾滋病病毒起到部分抑制作用。自天花絕跡以來,很少有人接種天花疫苗,而其后,艾滋病病毒開始迅速蔓延。

In this small study, the researchers exposed immune cells from 10 smallpox-vaccinated people to HIV. Cells from 10 people never vaccinated against smallpox were also exposed. And HIV did replicate much more successfully in the cells from the non-vaccinated subjects. [Raymond S. Weinstein et al., O]
研究人員將10名天花疫苗接種者的免疫細(xì)胞以及另外10名未接種者的體細(xì)胞暴露在艾滋病病毒環(huán)境中。結(jié)果發(fā)現(xiàn),相比之下,艾滋病病毒更容易在未接種過天花疫苗的細(xì)胞中增殖。

Further research confirming the relationship between stopping the smallpox vaccine and the rise of HIV would not surprise William McNeill. The author of the classic book Plagues and Peoples also wrote a chapter titled "Patterns of Disease Emergence in History" for the 1993 book Emerging Viruses. He mused on our ability to “insulate ourselves from local and frequent disasters.” But doing so comes at the cost of “creating a new vulnerability to some larger disaster.” McNeill concluded: “Perhaps what we face as humans is a conservation of catastrophe.”
進(jìn)一步研究發(fā)現(xiàn),艾滋病病毒蔓延與天花疫苗接種停止有關(guān)。但這一發(fā)現(xiàn)并沒有震懾到威廉姆·麥克奈爾。麥克奈爾是《瘟疫與人類》一書的作者。并且,他在1993年出版的《新生病毒》一書中“史上疾病的產(chǎn)生模式”這一章節(jié)中仔細(xì)探討了人們“擺脫當(dāng)?shù)馗哳l疾病”的能力,但這是以“將無力應(yīng)對(duì)更大疾病”為代價(jià)的。麥克奈爾總結(jié)道:“也許,我們?nèi)祟愐鎸?duì)的是無窮無盡的災(zāi)難?!?/div>

點(diǎn)擊進(jìn)入?yún)⑴c科學(xué)60秒查看背景資料和單詞總結(jié)>>>


聲明:音視頻均來自互聯(lián)網(wǎng)鏈接,僅供學(xué)習(xí)使用。本網(wǎng)站自身不存儲(chǔ)、控制、修改被鏈接的內(nèi)容。"滬江英語"高度重視知識(shí)產(chǎn)權(quán)保護(hù)。當(dāng)如發(fā)現(xiàn)本網(wǎng)站發(fā)布的信息包含有侵犯其著作權(quán)的鏈接內(nèi)容時(shí),請(qǐng)聯(lián)系我們,我們將依法采取措施移除相關(guān)內(nèi)容或屏蔽相關(guān)鏈接。