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When it comes to fighting COVID-19 in Africa, the internet and social media have been a double-edged sword. Governments and public health officials have used Twitter, WhatsApp, Facebook and other social media to reach large numbers of people, quickly and efficiently, with information on how to stay healthy and limit the virus’s spread. And digital networks have allowed people to stay in touch, and some businesses to operate, in the face of lockdowns and social-distancing guidelines.