There are clotting agents she can have, right?

她可以凝血剂的 是吧？

The blood contains a special clotting agent.

血液中含有一种特殊的凝血剂。

Mosquito saliva is an anticoagulant, meaning it prevents blood-clotting, allowing blood to travel smoothly and efficiently from person to mosquito.

蚊子的唾液是一种抗凝血剂，意味着它可以防止血液凝固，使血液在人与蚊子之间畅有效地流动。

In 1912 the pharmaceutical giant Merck was trying to develop a blood-clotting agent.

1912 年，制药巨头默克公司试图开发一种凝血剂。

In 1916, a pair of American scientists found an even more effective anticoagulant called heparin, which works by deactivating enzymes that enable clotting.

1916 年，一对美国科学家发现了一种更有效的抗凝血剂，叫做肝素，它通过使可凝血的酶失活而发。

And then they have these specially adapted, very sharp teeth which cut as they bite, and then they actually have an anticoagulant, and that helps it to continue bleeding freely.

然后，它们其这些特异适应、极其锋利的牙齿，在咬住猎物的同时将其（皮肤）切开，并且它们（唾液中）自带一种抗凝血剂，能使血液不断流出。

And suddenly here was evidence that you could go into hospital and have a regular blood transfusion or particularly be a haemophiliac looking to have a blood clotting agent called Factor VIII and you could end up contaminated with this disease.

突然间，有证据表明你可以去医院并定期输血， 或者特别是血友病患者想要使一种叫做因子 VIII 的凝血剂， 你最终可能会感染这种疾病。