波多野结衣办公室双飞_制服 丝袜 综合 日韩 欧美_网站永久看片免费_欧美一级片在线免费观看_免费视频91蜜桃_精产国品一区二区三区_97超碰免费在线观看_欧美做受喷浆在线观看_国产熟妇搡bbbb搡bbbb_麻豆精品国产传媒

USEUROPEAFRICAASIA 中文雙語Fran?ais
World
Home / World / Reporter's Journal

Conquering malaria remains a daunting dilemma, but there's hope

By Chris Davis | China Daily USA | Updated: 2017-04-27 11:18

The war against malaria has made progress over the past decade, but there is still a long way to go, and Chinese researchers are leading the way on more than one front.

Roughly half of the world's population - 3 billion people - still remains at risk.

In 2006, there were 266 million cases a year leading to 750,000 deaths, according to the World Health Organization.

By 2015, the numbers had diminished, but remained huge - 212 million cases, 429,000 deaths.

And a staggering 90 percent of all cases are in Africa.

Dr Deng Changsheng, manager of the department of science and technology at Guangzhou University of Chinese Medicine, told a group of 27 journalists visiting from Africa recently, that strategy used to cause a major decline in malarial regions of China is showing promise in Africa.

The approach is called fast elimination of malaria by source eradication (FEMSE). It involves mass drug administration (MDA) of artemisinin-based combination therapies (ACT) - in other words, clearing an affected population of the malarial parasites by mass drug administration.

Artemisinin, by the way, is the drug that won 85-year-old Chinese pharmacologist Tu Youyou the 2015 Nobel Prize for Medicine. She had mined the recipe, derived from the sweet wormwood plant, from the annals of ancient Chinese medicine. Today it saves hundreds of thousands of lives a year in Africa alone.

The drug has not been cheap, but Deng said the cost could be brought to as low as $15 per person over the next decade. Today it's about $40, according to Deng.

Thanks to a worldwide push, ACT treatments rose from 187 million in 2010 to 311 million in 2015.

The big fear facing the effort right now is that the parasites are showing signs of developing a resistance to artemisinin, the same way some strains of tuberculosis are shunning off some of modern medicine's most potent antibiotics.

"The spread of artemisinin resistance in Africa would be a major setback in the fight against malaria, as ACT is the only effective and widely used anti-malarial treatment at the moment," writes Professor Arnab Pain of King Abdullah University of Science and Technology in the current issue of the New England Journal of Medicine.

"Therefore it is very important to regularly monitor artemisinin resistance on a worldwide scale," he added.

The study, led by Jun Cao of the Institute for Parasitic Diseases in China, found drug-resistant malarial parasites in a Chinese patient who had been in Equatorial Guinea and returned to China. The ACT therapy, which usually takes three days to rid the patient of the disease, took five days in this case.

This "partial resistance", they said, has been noted in other parts of Southeast Asia, and the great fear is that "partial" morphs into "complete".

"This is one of the great challenges facing us in the fight against malaria," the World Health Organization says on its website.

The holy grail of that fight, of course, remains a vaccine, and The Associated Press reports that three African nations have just been chosen to test the world's first malaria vaccine.

WHO announced Monday that Ghana, Kenya and Malawi will begin piloting an injectable vaccine next year with hundreds of thousands of young children, who have been at highest risk of death.

The vaccine, which has partial effectiveness, has the potential to save tens of thousands of lives if used with existing measures, WHO's regional director for Africa, Dr Matshidiso Moeti, said in a statement. The challenge is whether impoverished countries can deliver the required four doses of the vaccine for each child.

The vaccine will be tested on children 5 to 17 months old to see whether its protective effects shown so far in clinical trials can hold up under real-life conditions. At least 120,000 children in each of the three countries will receive the vaccine, which has taken decades of work and hundreds of millions of dollars to develop.

Kenya, Ghana and Malawi were chosen for the vaccine pilot because all have strong prevention and vaccination programs but continue to have high numbers of malaria cases, WHO said. The countries will deliver the vaccine through their existing vaccination programs.

WHO is hoping to wipe out malaria by 2040, despite the increasing resistance problems to both drugs and insecticides used to kill mosquitoes.

The vaccine was developed by GlaxoSmithKline, and the $49 million for the first phase of the pilot is being funded by the global vaccine alliance GAVI, UNITAID and Global Fund to Fight AIDS, Tuberculosis and Malaria.

Contact the writer at chrisdavis@chinadailyusa.com.

 

Most Viewed in 24 Hours
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
波多野结衣办公室双飞_制服 丝袜 综合 日韩 欧美_网站永久看片免费_欧美一级片在线免费观看_免费视频91蜜桃_精产国品一区二区三区_97超碰免费在线观看_欧美做受喷浆在线观看_国产熟妇搡bbbb搡bbbb_麻豆精品国产传媒
国产午夜亚洲精品理论片色戒| 日韩高清在线一区| 国产成人自拍在线| 91精品国自产在线| 精品国产欧美一区二区| 日韩二区三区在线观看| 日本一卡二卡在线| 在线成人av网站| 视频一区二区欧美| 人妻丰满熟妇av无码久久洗澡| 欧美一区二区精品在线| 偷拍日韩校园综合在线| 国产草草浮力影院| 秋霞午夜鲁丝一区二区| 欧美日韩中文字幕一区二区| 亚洲在线一区二区三区| 欧美日韩一区二区区| 欧美色图片你懂的| 亚洲第一激情av| 一级特黄a大片免费| 欧美va亚洲va在线观看蝴蝶网| 欧美aaaaaa午夜精品| 91成年人网站| 国产欧美一区二区精品久导航| 国产成人免费视频网站高清观看视频| av资源在线免费观看| 中文字幕免费观看一区| av一区二区久久| 日本高清不卡视频| 亚洲国产成人高清精品| 免费的av网站| 久久精品一区八戒影视| 国产69精品久久久久777| 一本大道综合伊人精品热热 | 亚洲免费观看在线| 欧美一区二区三区婷婷月色| 蜜桃视频一区二区三区在线观看| 亚洲毛片亚洲毛片亚洲毛片| 国产精品国产三级国产aⅴ原创| 91网址在线看| 欧美一区二区三区免费大片| 精品在线观看免费| 国产极品国产极品| 亚洲成av人片在线| 日本少妇xxxxx| 亚洲视频资源在线| 污污内射在线观看一区二区少妇| 久久人人97超碰com| 欧美视频一区二区三区四区| 精品人妻少妇嫩草av无码| 欧美精品aⅴ在线视频| 久久99热99| 日本青青草视频| 偷拍自拍另类欧美| 国产wwwwxxxx| 亚洲影视在线播放| jizz中文字幕| 亚洲精品欧美综合四区| 国产激情在线免费观看| 亚洲欧洲性图库| 在线天堂www在线国语对白| 国产欧美精品一区| 亚洲av永久无码精品| 国产日本欧美一区二区| 中文字幕18页| 中文字幕av一区二区三区高 | 玉米视频成人免费看| 亚洲午夜久久久久久久久红桃| 国产精品乱人伦一区二区| 久久精品aⅴ无码中文字字幕重口| 2020国产成人综合网| 91浏览器在线视频| 久久久久久夜精品精品免费| 麻豆精品国产传媒| 国产女同性恋一区二区| 欧美肉大捧一进一出免费视频| 国产精品久久一级| 性欧美一区二区| 亚洲图片欧美色图| 欧美大片xxxx| 麻豆91精品视频| 欧美少妇一区二区| 成人午夜av在线| 精品国产乱码久久久久久蜜臀| 成人在线短视频| 欧美激情一区二区| 免费黄色在线视频| 亚洲国产日韩在线一区模特| 性欧美videos| 韩日av一区二区| 日韩一区二区在线免费观看| 99久久99久久久精品齐齐| 国产亚洲精品福利| 国产精品无码一区二区三区| 亚洲综合激情网| 91成人福利视频| 国产精品一色哟哟哟| 欧美videossexotv100| 蜜臀av粉嫩av懂色av| 亚洲女同女同女同女同女同69| 日韩欧美视频免费观看| 毛片一区二区三区| 欧美日本免费一区二区三区| av不卡在线观看| 国产精品人成在线观看免费| 阿v天堂2014| 五月天中文字幕一区二区| 欧美影视一区在线| 成人激情小说网站| 国产精品女主播在线观看| 亚洲第一综合网| 蜜臀久久99精品久久久画质超高清| 欧美挠脚心视频网站| 亚洲av无码久久精品色欲| 亚洲精品美腿丝袜| 91国偷自产一区二区三区成为亚洲经典| 国产福利一区在线观看| 久久久久久麻豆| 日本一区二区视频在线播放| 精品在线播放免费| 久久综合久久综合久久| 亚洲成人黄色av| 蜜臀av亚洲一区中文字幕| 日韩视频永久免费| 欧美熟妇一区二区| 日韩欧美一二三| 在线精品一区二区三区| 视频一区欧美日韩| 日韩午夜在线播放| aa一级黄色片| 久久精品国产久精国产| 久久久亚洲午夜电影| 又色又爽的视频| 高清不卡一区二区在线| 国产精品福利一区二区三区| 亚洲欧美一区二区三区四区五区| www.欧美.com| 一区二区在线观看免费视频播放| 91精品福利视频| 麻豆短视频在线观看| 视频一区二区国产| 精品国产污网站| 一本色道久久88| fc2成人免费人成在线观看播放| 亚洲少妇屁股交4| 欧美日韩综合不卡| 国产福利短视频| 国模少妇一区二区三区| 国产精品免费aⅴ片在线观看| 好吊色视频在线观看| 日韩大尺度视频| 日韩av一区二区三区四区| 精品盗摄一区二区三区| 99热6这里只有精品| 99久久综合狠狠综合久久| 亚洲午夜免费电影| 欧美成人一区二区三区片免费| 极品蜜桃臀肥臀-x88av| 成人性色生活片免费看爆迷你毛片| 亚洲免费av高清| 欧美一区二区大片| 日本黄区免费视频观看| av在线一区二区三区| 五月激情六月综合| 久久久99精品免费观看| 色综合久久99| 亚洲国产精品成人综合久久久| 国产一区二区中文字幕| 亚洲免费视频中文字幕| 欧美一级片免费看| 一区二区三区影视| 最新日本中文字幕| 国产一区二区中文字幕| 一区二区久久久久久| 我想看黄色大片| 亚洲av无码久久精品色欲| 蜜臂av日日欢夜夜爽一区| 国产精品福利在线播放| 4438x亚洲最大成人网| 国产中文字幕久久| av电影中文字幕| 国产麻豆视频精品| 亚洲一二三区在线观看| 国产精品无码网站| av男人天堂一区| 美女视频黄 久久| 亚洲欧美日韩中文播放| 日韩精品一区二区三区四区| www.色小姐com| 97人妻精品一区二区三区免| 成人av午夜影院| 麻豆精品新av中文字幕| 亚洲女同ⅹxx女同tv| 精品国产91久久久久久久妲己| 日本乱人伦aⅴ精品| 国产人妻大战黑人20p| 日韩av成人网| 国产suv精品一区二区6| 日韩精品视频网站| 亚洲人成亚洲人成在线观看图片|