Facebook post containing link to article discussing new findings that show hydroxychloroquine plus azithromycin could be helpful in treating coronavirus given warning label: The article's headline read: "Hydroxychloroquine + Azithromycin therapy at a higher dose improved survival by nearly 200% in ventilated COVID patients" and was given a warning label by Facebook when posted to the platform by users. "Some unapproved COVID-19 treatments may cause serious harm," the label states. It also indicates that the source of its information is the Chinese-backed World Health Organization (WHO). Warning labels typically serve to suppress the exposure a post may receive on Facebook.