But these poisons can have a flip side for us—some fight cancer or tropical parasites that cause diseases like malaria.

有意思的是，这些有毒物质也能帮助人类对抗癌症或像导致疟疾的热带寄生虫（即疟原虫）。

youdao

Malaria, a common and life-threatening disease, is a risk in tropical and subtropical areas of over 100 countries.

疟疾是一种可危及生命的常见病，在热带和亚热带地区的100多个国家中存在发生疟疾的风险。

youdao

Had a major impact on the control of malaria, Chagas disease, visceral leishmaniasis and other tropical diseases.

对控制疟疾、南美锥虫病、内脏利什曼病和其它热带疾病产生了重大、积极的影响。

youdao

This led Ayala to similar discoveries about the parasites that cause malaria and other tropical diseases.

VOA: standard.2010.04.05

Sabah at the time had become a playground for young, mostly British adventurers who faced tropical diseases like malaria and the occasional headhunter in the thick rainforests.

CNN: ASIANOW - TIME Asia | Travel Watch | Detour

My travel, accommodation and associated costs were met by the Malaria Consortium. (Registered 8 October 2008) 7-11 December 2008, to Senegal, at the invitation of the Global Fund against Aids, TB and Malaria, as Chairman of the All-Party Parliamentary Group on Malaria and Neglected Tropical Diseases, and voluntary Chairman of the Malaria Consortium (NGO), for the Global Fund Partnership Forum 2008.

BBC: Stephen O'Brien

"American Idol" host Ryan Seacrest, another popular Twitter user, also agreed Friday to make a donation of mosquito bed nets, which help prevent the biting insects from spreading malaria in tropical countries.

CNN: Oprah, Ashton Kutcher mark Twitter 'turning point'