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Chris Hadfield
Retired Canadian Astronaut & Author
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Century-old vaccine may lower coronavirus deaths, finds new study

A new study suggests that an old tuberculosis vaccine may reduce the severity of coronavirus cases.

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  • A new study finds a tuberculosis BCG vaccination is linked to its COVID-19 mortality rate.
  • More BCG vaccinations are connected to fewer severe coronavirus cases in East Germany.
  • The study is preliminary and more research is needed to support the findings.
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How often do vaccine trials hit paydirt?

Vaccines find more success in development than any other kind of drug, but have been relatively neglected in recent decades.

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Vaccines are more likely to get through clinical trials than any other type of drug — but have been given relatively little pharmaceutical industry support during the last two decades, according to a new study by MIT scholars.

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Hannah Gadsby has a message for anti-vaxxers

In "Douglas," the Australian comedian opens up about her autism diagnosis.

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  • In her new Netflix special, "Douglas," comedian Hannah Gadsby targets anti-vaxxers.
  • Diagnosed with autism four years ago, Gadsby discusses the dangers of believing vaccinations cause autism.
  • Some high-profile anti-vax activists use their platform in order to sell supplements and books.
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Dr. Fauci: 'Good chance' we have COVID-19 vaccine by end of 2020

Currently, more than 100 COVID-19 vaccines are being developed worldwide.

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  • Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, made the remarks on April 27 while speaking to CNN.
  • There are currently ten COVID-19 vaccines in clinical trials, according to the World Health Organization.
  • A new report warns that people who refuse to get vaccinated could jeopardize the success of a COVID-19 vaccine.
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Don't worry about making a mistake. It's how we learn.

A new study at UPenn found that effective learning includes mistakes—just not too many.

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  • Humans learn best when avoiding too much complexity and getting the gist of situations, according to a new study by researchers at the University of Pennsylvania.
  • Instead of remember every detail, we learn by categorizing situations through pattern recognition.
  • We wouldn't retain much if we considered a high level of complexity with every piece of information.
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