挥之不去的疯牛病阴影

乐观主义者称牛海绵状脑病,亦称“疯牛病”可以致人死命的新型变体克雅氏病(CJD)正在逐渐消失。显而易见,鉴于变异型克雅氏病曾经造成的痛苦和给公众带来的忧虑,它可能的消退无疑是个好消息。但情况真的是这样吗?

克雅氏病是所谓朊病毒疾病的一种,这种疾病包括特定的一些能够传染的退行性神经疾病。尽管疾病传播的准确特质还不太清楚,但其主要的结果是导致正常的朊蛋白细胞转化为一种非正常形式,从而构成主要(甚至是唯一)的感染原因。

人们对变异型克雅氏病的认识始于1996年,当时位于爱丁堡的英国全国克雅氏病调查局(NCJDSU)开展了高强度的监控活动。这种新形式的朊病毒疾病具有与众不同的临床和病理特征,主要感染同一基因分组中的年轻病人。

To continue reading, please log in or enter your email address.

Registration is quick and easy and requires only your email address. If you already have an account with us, please log in. Or subscribe now for unlimited access.

required

Log in

http://prosyn.org/BjMGWUO/zh;
  1. Television sets showing a news report on Xi Jinping's speech Anthony Wallace/Getty Images

    Empowering China’s New Miracle Workers

    China’s success in the next five years will depend largely on how well the government manages the tensions underlying its complex agenda. In particular, China’s leaders will need to balance a muscular Communist Party, setting standards and protecting the public interest, with an empowered market, driving the economy into the future.

  2. United States Supreme Court Hisham Ibrahim/Getty Images

    The Sovereignty that Really Matters

    The preference of some countries to isolate themselves within their borders is anachronistic and self-defeating, but it would be a serious mistake for others, fearing contagion, to respond by imposing strict isolation. Even in states that have succumbed to reductionist discourses, much of the population has not.

  3.  The price of Euro and US dollars Daniel Leal Olivas/Getty Images

    Resurrecting Creditor Adjustment

    When the Bretton Woods Agreement was hashed out in 1944, it was agreed that countries with current-account deficits should be able to limit temporarily purchases of goods from countries running surpluses. In the ensuing 73 years, the so-called "scarce-currency clause" has been largely forgotten; but it may be time to bring it back.

  4. Leaders of the Russian Revolution in Red Square Keystone France/Getty Images

    Trump’s Republican Collaborators

    Republican leaders have a choice: they can either continue to collaborate with President Donald Trump, thereby courting disaster, or they can renounce him, finally putting their country’s democracy ahead of loyalty to their party tribe. They are hardly the first politicians to face such a decision.

  5. Angela Merkel, Theresa May and Emmanuel Macron John Thys/Getty Images

    How Money Could Unblock the Brexit Talks

    With talks on the UK's withdrawal from the EU stalled, negotiators should shift to the temporary “transition” Prime Minister Theresa May officially requested last month. Above all, the negotiators should focus immediately on the British budget contributions that will be required to make an orderly transition possible.

  6. Ksenia Sobchak Mladlen Antonov/Getty Images

    Is Vladimir Putin Losing His Grip?

    In recent decades, as President Vladimir Putin has entrenched his authority, Russia has seemed to be moving backward socially and economically. But while the Kremlin knows that it must reverse this trajectory, genuine reform would be incompatible with the kleptocratic character of Putin’s regime.

  7. Right-wing parties hold conference Thomas Lohnes/Getty Images

    Rage Against the Elites

    • With the advantage of hindsight, four recent books bring to bear diverse perspectives on the West’s current populist moment. 
    • Taken together, they help us to understand what that moment is and how it arrived, while reminding us that history is contingent, not inevitable


    Global Bookmark

    Distinguished thinkers review the world’s most important new books on politics, economics, and international affairs.

  8. Treasury Secretary Steven Mnuchin Bill Clark/Getty Images

    Don’t Bank on Bankruptcy for Banks

    As a part of their efforts to roll back the 2010 Dodd-Frank Act, congressional Republicans have approved a measure that would have courts, rather than regulators, oversee megabank bankruptcies. It is now up to the Trump administration to decide if it wants to set the stage for a repeat of the Lehman Brothers collapse in 2008.