The international "radio listeners or radio listen" club was founded in March 2013 at the Academia Caruaruense de Ciencias e Letras (ACACIL) in the city of Caruaru, Pernambuco in Brazil.
Twitter and Facebook both stepped up enforcement of policies against harmful and hateful content during the US election campaign, in many cases limiting the reach of comments by President Donald Trump.
The UN High Representative "is following with deep concern the growing tensions and instances of intolerance triggered by the publication of the satirical caricatures depicting Prophet Muhammed," according to the statement.
"The tool provides nuanced information on people's risk of serious illness due to Covid-19 and is designed for use by clinicians with patients to reach a shared understanding of risk."