Study Identifies Problem in Polio Vaccine
Nghiên cứu phát hiện vấn đề về vắc-xin bại liệt
Nội dung bài
Bài học đã được dịch, bạn hãy đưa chuột vào các câu tiếng anh để xem.
From VOA Learning English, this is the Health Report.
PLAY
Is a new deadly polio virus hiding somewhere in the world? Some scientists believe this might be true. PLAY
Polio causes paralysis, leaving victims unable to walk or move parts of their bodies. The disease does not usually kill. PLAY
But polio was deadly when the virus appeared in the Republic of the Congo in 2010. Nearly half of the 445 people who were infected died. PLAY
New research shows there might have been a weak spot in the polio vaccine. Reseachers say mutations, or changes, in the polio virus were responsible for that unusually deadly outbreak. The researchers say new kinds of polio may come into existence as the world gets closer to stopping the virus. PLAY
Felix Drexler is an expert on viruses at the University of Bonn in Germany. He says those infected in the Congo were different from other polio patients in an important way. He says about half of them rememberd taking three doses of the live vaccine. He says they should not have gotten sick as a result. PLAY
Mr Drexler and other researchers studied that polio virus. They found it had some never-before-seen mutations. These changes prevented disease-fighting antibodies from attacking the virus. PLAY
The Republic of the Congo had been polio free before the 2010 outbreak. It ended after four nationwide vaccination campaigns. PLAY
Experts say the worldwide end of polio is near. There have been fewer than 150 cases this year. PLAY
Walt Orenstein is with the Emory Vaccine Center in the United States. He says health workers need to kill the virus in the last few areas where it remains. Then, he says, talk about mutant strains or stronger vaccines would be unnecessary. PLAY
For VOA Learning English, I’m Alex Villarreal. PLAY
Is a new deadly polio virus hiding somewhere in the world? Some scientists believe this might be true. PLAY
Polio causes paralysis, leaving victims unable to walk or move parts of their bodies. The disease does not usually kill. PLAY
But polio was deadly when the virus appeared in the Republic of the Congo in 2010. Nearly half of the 445 people who were infected died. PLAY
New research shows there might have been a weak spot in the polio vaccine. Reseachers say mutations, or changes, in the polio virus were responsible for that unusually deadly outbreak. The researchers say new kinds of polio may come into existence as the world gets closer to stopping the virus. PLAY
Felix Drexler is an expert on viruses at the University of Bonn in Germany. He says those infected in the Congo were different from other polio patients in an important way. He says about half of them rememberd taking three doses of the live vaccine. He says they should not have gotten sick as a result. PLAY
Mr Drexler and other researchers studied that polio virus. They found it had some never-before-seen mutations. These changes prevented disease-fighting antibodies from attacking the virus. PLAY
The Republic of the Congo had been polio free before the 2010 outbreak. It ended after four nationwide vaccination campaigns. PLAY
Experts say the worldwide end of polio is near. There have been fewer than 150 cases this year. PLAY
Walt Orenstein is with the Emory Vaccine Center in the United States. He says health workers need to kill the virus in the last few areas where it remains. Then, he says, talk about mutant strains or stronger vaccines would be unnecessary. PLAY
For VOA Learning English, I’m Alex Villarreal. PLAY
Source: VOA news
Lượt xem: 149
Ngày tạo:
Bài học khác
Can light pollution harm your health?
2.180 lượt xem
Young activist praises girls’ gains in education
2.148 lượt xem
The hungriest place on the earth
156 lượt xem
World’s longest railway links China and Spain
167 lượt xem
Higher Education Opens to More People Worldwide
163 lượt xem
Taking Notes by Hand Is Better for Understanding
75 lượt xem
US Program Aims to Support Girls' Education
91 lượt xem
World’s Rich Get Their Own Facebook
91 lượt xem
Climate Change Might Hurt Many Farms in Africa
82 lượt xem
Having a Problem with a School Paper?
8 lượt xem
Bạn vui lòng đăng nhập để đăng câu hỏi
Mời bạn nhập câu hỏi ở đây (đừng quên cho thêm ngữ cảnh và nguồn bạn nhé)Bạn đang cần hỏi gì? Đăng nhập để hỏi đáp ngay bạn nhé.
-
01/02/24 09:10:20Rừng ít người vô nhỉ, nhưng trong bài viết của em thống kê thì lượng view đọc bài lúc nào R cũng đứng đầu á, thậm chí còn kéo dài liên tục, đều đặn ^^ Lạ nhỉHuy Quang, Bear Yoopies đã thích điều nàyXem thêm 1 bình luận-
0 · 24/02/24 09:11:41 -
0 · 08/03/24 03:58:33
-
-
26/12/23 03:32:46Đọc chơi bài viết mới của em cho chuyến đi thiện nguyện với Nhóm CNYT giữa tháng 12/2023 này. Mới phần 1, em sẽ viết tiếp phần 2 ạ (to be continued) https://discover.hubpages.com/travel/book-trips-lai-chau-vietnam-chu-nhat-yeu-thuong-part-1Xem thêm 2 bình luận
-
0 · 06/01/24 03:08:21-
· 01/02/24 09:08:23
-
-
0 · 08/01/24 08:49:31-
· 01/02/24 09:07:22
-
-
-
26/01/24 01:32:27Hi mọi người, em vừa viết xong phần 2 chuyến hành trình thiện nguyện đem sách và yêu thương đến các điểm trường bản xa, chuyến này là ở Lai Châu (Việt Nam). Mọi người đọc chơi nhé:Phần 2: https://discover.hubpages.com/travel/book-trips-lai-chau-vietnam-chu-nhat-yeu-thuong-part-2Phần 1: Hi mọi người, em vừa viết xong phần 2 chuyến hành trình thiện nguyện đem sách và yêu thương đến các điểm trường bản xa, chuyến này là ở Lai Châu (Việt Nam). Mọi người đọc chơi nhé:Phần 2: https://discover.hubpages.com/travel/book-trips-lai-chau-vietnam-chu-nhat-yeu-thuong-part-2Phần 1: https://discover.hubpages.com/travel/book-trips-lai-chau-vietnam-chu-nhat-yeu-thuong-part-1 Xem thêm.
-
Xem thêm 7 bình luận
-
0 · 15/01/24 09:06:03
-
· 1 · 19/01/24 11:34:27
-
-
0 · 20/01/24 09:12:20
-
-
-
0 · 05/09/23 09:19:35
-
· 03/01/24 09:52:18
-
-
0 · 15/09/23 09:01:56-
· 03/01/24 09:46:42
-
-
-
-
2 · 16/10/23 10:39:49
-
