VOA英语教学网 - VOA LEARNING ENGLISH
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
China has not been using the kind of COVID-19 vaccine that has proven to offer the best protection against the virus. The country is working through its biggest coronavirus outbreak…
Many African countries are expected to receive their first COVID-19 vaccine doses in March from the United Nations’ COVAX effort. The World Health Organization’s Africa director recently announced the plan.…
U.S. health officials have identified the next Americans who should receive the COVID-19 vaccine. Among the groups are people 75 years and older, as well as essential workers such as…
People in the United States and Europe welcomed the arrival of the western-made coronavirus vaccine. However, the Russian-made vaccine has not been as popular in Russia. There are reports of…
The leader of drug maker Moderna says the company should know in November whether its experimental COVID-19 vaccine works. Stephane Bancel spoke on the financial news network CNBC Thursday, the…
The hunt for a COVID-19 vaccine for children is only just beginning and that has some American pediatricians worried. Those doctors are concerned they may not know if any vaccine…
The world’s most promising coronavirus vaccine candidates need to be kept in cold storage to be safe and effective. Health officials have noted progress in equipping developing countries with the…
American drug maker Johnson & Johnson has suspended its Phase 3 COVID-19 vaccine trial. The suspension came after a patient in the study had “unexplained illness.“ A month ago, British…
The company Johnson & Johnson has begun the final part of its trial of a single-treatment, COVID-19 vaccine. The study will be one of the world’s largest, testing the injection…
Drug-maker AstraZeneca has temporarily suspended its COVID-19 vaccine tests after an “unexplained illness” in a person who took the treatment. In a statement released Tuesday, the company said, “This is…
Nine leading American and European drug-makers promised to follow scientific standards in the race to develop an effective coronavirus vaccine. The companies, including Pfizer, GlaxoSmithKline and AstraZeneca, made the promise…
Researchers say antibodies, made by the human body to fight the new coronavirus, could last for at least four months. Earlier reports suggested that these special proteins disappeared quickly. Galit…
The new coronavirus has now infected more than 20 million people around the world: a number that has increased by 100 percent in about six weeks. The number of deaths…
Russian President Vladimir Putin declared on Tuesday that Russia has become the first country to approve a vaccine for COVID-19. But some scientists question whether its quick approval without testing…
The world’s biggest COVID-19 vaccine study started on Monday. A total of 30,000 planned volunteers will help test the effectiveness and safety of a shot developed by the National Institutes…