VOA慢速：联合国授权第二次注射以抗击美洲登革热

TEM-4听力语速 | 四级（高考）偏难 | 367词 |4min3s

刘立军供稿

Part I. QUESTIONS

Listen to the news and choose the best answer to each question you hear.

Q1. What is the recommended age group for the Takeda dengue vaccine according to WHO?

A. 2-10 years.

B. 6-16 years.

C. 5-12 years.

D. 8-18 years.

Q2. How effective is the Takeda vaccine in stopping symptoms of dengue?

A. 45 percent.

B. 75 percent.

C. 61 percent.

D. 84 percent.

Q3. What is the main purpose of the text?

A. To inform about the approval and significance of a new dengue vaccine.

B. To discuss various treatments for dengue fever.

C. To analyze the impact of climate change on dengue.

D. To explore the history of dengue fever.

Q4. Why might climate change be linked to the spread of dengue, according to experts?

A. It creates resistance to the vaccine.

B. It reduces the effectiveness of the vaccine.

C. It eliminates natural predators of mosquitoes.

D. It increases the population of mosquitoes carrying dengue.

Part II. TRANSCRIPT

UN Authorizes Second Shot to Fight Dengue in Americas

The World Health Organization recently authorized a second dengue vaccine. The move could provide protection for millions of people worldwide against the mosquito-borne disease.

authorize v. 批准；授权

dengue n. 登革热（由蚊子传播的热带疾病，症状为发烧和关节剧痛）

This year, several dengue outbreaks have happened in places across the Americas.

In a statement on May 15, the U.N. health agency said it approved the dengue vaccine made by the Japanese drugmaker Takeda.

Takeda’s dengue vaccine is known as Qdenga. It was previously approved by the European Medicines Agency in 2022. The two-dose vaccine is given three months apart. It protects against the four kinds of dengue. (Q1) The WHO recommends its use in children between the ages of 6 and 16 who live in areas with high rates of dengue.

Approval by the WHO now means that donors and other U.N. agencies can purchase the vaccine for poorer countries.

donor n. 捐赠者；捐赠机构

(Q2) Studies have shown Takeda’s vaccine is about 84 percent effective in preventing people from being hospitalized and about 61 percent effective in stopping symptoms.

WHO’s Rogerio Gaspar is director for the agency’s approvals of medicines and vaccines. He said it was “an important step in the expansion of global access to dengue vaccines.”

The first dengue vaccine that the WHO approved was made by the drugmaker Sanofi Pasteur. The vaccine was later found to increase the risk of severe dengue in people who had not been infected with the disease before.

There is no exact treatment for dengue. It is a leading cause of serious illness and death in about 120 Latin American and Asian countries. About 80 percent of infections are mild. But severe cases of dengue can lead to internal bleeding, organ failure, and death.

Last week, the WHO reported there were 6.7 million suspected cases of dengue in the Americas. That is an increase of 206 percent compared with the same period last year. In March of this year, officials in Rio de Janeiro declared a public health emergency over its dengue epidemic. Brazilian health officials began giving out the Takeda vaccine with the goal of protecting at least 3 million people.

(Q4) Infectious disease experts say climate change and the increased range of mosquitoes that carry dengue are partly to blame for the spread of the disease.

I’m Anna Matteo.

Part III. KEY

Q1. B. 细节题。文章中提到：The WHO recommends its use in children between the ages of 6 and 16 who live in areas with high rates of dengue. 意为：世卫组织建议该疫苗用于居住在登革热高发地区的6至16岁儿童。因此答案为B。

Q2. C. 细节题。文章中提到：... and about 61 percent effective in stopping symptoms. 意为：...在阻止症状方面有效率约为61%。因此答案为C。

Q3. A . 主旨题。整篇文章主要介绍了WHO批准了一种新的登革热疫苗以及这种疫苗的影响。文章集中讨论了疫苗的研发、测试结果和对全球登革热防控的意义。因此答案为A。

Q4. D. 推理题。文章最后一段提到：Infectious disease experts say climate change and the increased range of mosquitoes that carry dengue are partly to blame for the spread of the disease. 意为：传染病专家表示，气候变化和传播登革热的蚊子范围扩大是导致疾病传播的部分原因。由此可以推断出气候变化让携带登革热病毒的蚊子的活动范围变得更大，从而加剧了登革热的传播。因此答案为D。

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