Pfizer and BioNTech announced this week they had developed a vaccine that was more than 90 per cent effective against COVID-19. However, misinformation is already circulating on social media. Since the start of the pandemic, social media platforms have faced pressure to combat conspiracy theories about COVID-19 vaccines, and now with a vaccine in the works, there is even more pressure to combat these issues. As a result, social media companies are fine-tuning their policies in anticipation of misinformation and...

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