Facebook has a coronavirus problem. It's WhatsApp.

The platform is being used to spread messages that often contain a mixture of accurate and misleading claims that have been debunked by medical experts. The problem is now so acute that world leaders are urging people to stop sharing unverified information using the app. 'I am urging everyone to please stop sharing unverified info on WhatsApp groups,' Irish Prime Minister Leo Varadkar said Monday on Twitter. 'These messages are scaring and confusing people and causing real damage. Please get your info from official, trusted sources.'