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Articles on COVID-19 vaccines

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Ever since a 1904 revolt against the smallpox vaccine, Brazil has run extremely successful vaccination programs. Rafael Henrique/SOPA Images/LightRocket via Getty Images

Brazil’s president rejects COVID-19 vaccine, undermining a century of progress toward universal inoculation

A 1904 revolt against mandatory smallpox inoculation taught Brazilian health officials a deadly lesson on how to vaccinate a skeptical public. Today President Bolsonaro seems to ignore that history.
Tony Potts, a 69-year-old retiree, removes his face mask for a temperature check just before receiving his first injection in a phase 3 COVID-19 vaccine clinical trial sponsored by Moderna. Potts is one of 30,000 participants in the Moderna trial. Paul Hennessy/NurPhoto via Getty ImageS

What are emergency use authorizations, and do they guarantee that a vaccine or drug is safe?

The vaccines that will first be used to prevent the spread of COVID-19 will have gone through a special approval process with the FDA. but just what is this expedited process?
A nurse prepares a shot for a clinical trial of a COVID-19 vaccine candidate developed by the National Institutes of Health and Moderna Inc., on July 27, 2020 in Binghamton, N.Y. (AP Photo/Hans Pennink, File)

COVID-19 vaccine FAQ: 6 things to look for in clinical trial results

With COVID-19 vaccine announcements making headlines, non-scientists need to know what clinical trial results mean. Here are some key points to look for in vaccine trial reports.
The drug maker company Pfizer says its COVID-19 vaccine is 95% effective with no serious side effects. Eduardo Munoz Alvarez/VIEW press/Corbis News via Getty Images

Coronavirus vaccines: health experts identify ways to build public trust

The United Nations recently asked a group of experts across the world to recommend ways to persuade people to take a COVID-19 vaccine. Here is a summary of their suggestions.
Mink can be readily infected with SARS-CoV-2 and then pass the virus to humans. (Shutterstock)

The mink link: How COVID-19 mutations in animals affect human health and vaccine effectiveness

In the disturbing scenario of human-to-mink-to-human COVID-19 transmission, the virus may mutate in mink prior to re-infecting people. That possibility makes vaccine design even more crucial.
While it may be deflating, events like the annual Macy’s Thanksgiving Day Parade are best watched from home this year. Here, the Harold the Fireman balloon lies face down as he readied for the parade on Nov. 27, 2019. Gary Hershorn via Getty Images

While spending holidays at home, here are a dozen more things you can do to help stop COVID-19

Inaction over the next few months could cost tens of thousands of lives. Here are things you should do now to stay safe and to stop the spread of the coronavirus.

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