ABUJA - Nigerian Foreign Minister Geoffrey Onyeama said on Sunday he had tested positive for COVID-19, the first member of President Muhammadu Buhari's cabinet to contract the new coronavirus. Onyeama, 64, said in a tweet he had taken a COVID-19 test because of a throat irritation. 'Did my fourth Covid-19 test yesterday at the first sign of a throat irritation and unfortunately this time it came back positive,' he tweeted. 'Heading for isolation in a health facility and praying for the best.'