Psychology & Psychiatry

COVID vaccines: We need to find out which incentives actually work

The most powerful tool for combating COVID is not a drug or a vaccine, but a method. A randomized trial is the best way to discover what works and what doesn't. This method underlies much of the progress in modern medicine, ...

Vaccination

4 billion anti-COVID shots injected worldwide

Although more than four billion doses of anti-COVID vaccines have been administered around the world, poorer countries are still struggling to secure precious shots despite recent donations.

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