Major websites are turning to automatic systems to moderate content as they tell their staff to work from home.
YouTube, Twitter and Facebook are all relying on artificial intelligence and automated tools to find problematic material on their platforms.
The tech giants admit this may lead to some mistakes – but say they still need to remove harmful content.
The coronavirus scare has led to a surge of medical misinformation across the web.
Google, which owns YouTube, said appeals about content wrongfully removed could take longer under the new measures.
Twitter, meanwhile, promised that no accounts suspended by automated software would be permanently banned without a human review.
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