We think if the coronavirus virus is widespread, a few tests will produce a high positive ratio. It is concerning if the ratio remains high in recent tests ( #Nigeria, #Senegal). A fall in latest tests ( #Maroc), or low % testing positive (east Africa) is good news https://twitter.com/RencapMan/status/1259398281270083585

The highest ratio of positive tests globally seem to be in Latin America, at around 50% in Mexico and Bolivia recently. This suggests the #coronavirus is widespread and not being brought under control.
Qatar, Pakistan, Indonesia and the US are also high