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VOA健康报道2024--Cameroon Launches First Malaria Vaccine Program for Children

时间:2024-03-04 02:33:46

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Cameroon Launches First Malaria1 Vaccine2 Program for Children

Cameroon has begun the world's first major malaria vaccine program for children.

The campaign launched Monday in the Central African nation. Health officials called the effort a major step in the fight against the disease across Africa. The continent accounts for about 95 percent of the world's malaria deaths.

The World Health Organization (WHO) estimates the disease, which is spread through mosquitos, kills more than 600,000 people a year. Most of the deaths involve young children.

The vaccine, called RTS.S, was developed by British drug company GlaxoSmithKline (GSK). It is meant to work with other preventive measures, such as the use of bed nets, to fight the disease.

Cameroon is the first country to offer vaccine injections through a routine program after successful tests, or trials, were carried out in Ghana and Kenya. Cameroon hopes to vaccinate3 about 250,000 children this year and next.

The international vaccine alliance called Gavi has said 19 other countries aim to launch their own campaigns this year. About 6.6 million children in those countries are to receive malaria vaccinations4 in 2024 and 2025.

"For a long time, we have been waiting for a day like this," said Mohammed Abdulaziz. He is with the African Centers for Disease Control and Prevention. Abdulaziz spoke5 during a joint6 news briefing with the WHO, Gavi and other organizations.

Cameroon is using one of two recently approved malaria vaccines7, called Mosquirix. When the WHO approved the vaccine two years ago, officials admitted it was not perfect. But they noted8 its use could sharply reduce severe infections and hospitalizations.

The GSK-produced shot is only about 30 percent effective. It requires four shots, or doses. Tests have shown the vaccine's protection begins to weaken after several months. GSK has said it can only produce about 15 million doses of Mosquirix a year.

Some experts believe a second malaria vaccine developed by Oxford9 University and approved by the WHO in October may be a better solution. That vaccine, called R21, is less costly10 and only requires three doses.

Launching the second vaccine is expected to result in enough vaccine supply "to meet the high demand and reach millions more children," said Kate O'Brien. She is the WHO's director of vaccinations.

"Having two vaccines for malaria will help to close the huge gap between demand and supply and could save tens of thousands of young lives, especially in Africa," said WHO Director-General Tedros Adhanom Ghebreyesus.

India's Serum11 Institute – which helped develop the R21 vaccine –has said it could produce up to 200 million doses of it a year. Gavi has said that vaccine could be launched in May or June.

Some experts have raised questions about the long-term effectiveness of the vaccines. They have questioned whether attention and financing should be drawn12 away from the wider fight against the disease using established prevention methods.

But health experts at the news conference said the new vaccine launch included community efforts aimed at supporting the campaign. Officials advised individuals on vaccine safety and have urged them to continue to use existing protective methods alongside the vaccines.

Words in This Story

bed net – n. a large piece of material made with crossed threads and holes that is placed over a bed and is designed to keep out insects

routine – adj. done regularly

gap – n. an empty space or hole in the middle of or between two things


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1 malaria B2xyb     
n.疟疾
参考例句:
  • He had frequent attacks of malaria.他常患疟疾。
  • Malaria is a kind of serious malady.疟疾是一种严重的疾病。
2 vaccine Ki1wv     
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
参考例句:
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
3 vaccinate Iikww     
vt.给…接种疫苗;种牛痘
参考例句:
  • Local health officials then can plan the best times to vaccinate people.这样,当地的卫生官员就可以安排最佳时间给人们接种疫苗。
  • Doctors vaccinate us so that we do not catch smallpox.医生给我们打预防针使我们不会得天花。
4 vaccinations ed61d339e2970fa63aee4b5ce757cc44     
n.种痘,接种( vaccination的名词复数 );牛痘疤
参考例句:
  • Vaccinations ensure one against diseases. 接种疫苗可以预防疾病。 来自《简明英汉词典》
  • I read some publicity about vaccinations while waiting my turn at the doctor's. 在医生那儿候诊时,我读了一些关于接种疫苗的宣传。 来自《简明英汉词典》
5 spoke XryyC     
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
参考例句:
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。
6 joint m3lx4     
adj.联合的,共同的;n.关节,接合处;v.连接,贴合
参考例句:
  • I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤,肩膀脫臼了。
  • We wrote a letter in joint names.我们联名写了封信。
7 vaccines c9bb57973a82c1e95c7cd0f4988a1ded     
疫苗,痘苗( vaccine的名词复数 )
参考例句:
  • His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
8 noted 5n4zXc     
adj.著名的,知名的
参考例句:
  • The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
  • Jim is noted for arriving late for work.吉姆上班迟到出了名。
9 Oxford Wmmz0a     
n.牛津(英国城市)
参考例句:
  • At present he has become a Professor of Chemistry at Oxford.他现在已是牛津大学的化学教授了。
  • This is where the road to Oxford joins the road to London.这是去牛津的路与去伦敦的路的汇合处。
10 costly 7zXxh     
adj.昂贵的,价值高的,豪华的
参考例句:
  • It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • This dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
11 serum 8seyS     
n.浆液,血清,乳浆
参考例句:
  • The serum is available to the general public.一般公众均可获得血清。
  • Untreated serum contains a set of 11 proteins called complement.未经处理的血清含有一组蛋白质,共11种,称为补体。
12 drawn MuXzIi     
v.拖,拉,拔出;adj.憔悴的,紧张的
参考例句:
  • All the characters in the story are drawn from life.故事中的所有人物都取材于生活。
  • Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

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