Swiss pharmaceuticals giant Roche said Thursday the US authorities had given it emergency clearance for a test identifying patients most at risk of a dangerous immune response to coronavirus infection.

Britain on Thursday said it was in discussions with Swiss pharma giant Roche to mass purchase its coronavirus antibody test after scientists found it to be "100 percent" accurate, the government said Thursday.

Swiss pharmaceutical giant Roche said Friday it had developed an antibody test that it hopes to roll out in May to detect people previously infected with COVID-19, even those who displayed no symptoms.

The Taraba government has entered into partnership with pharmaceutical company, Roche, to combat hepatitis. The state has the highest prevalence rate of the disease in Nigeria.

Swiss pharmaceutical giant Roche on Tuesday announced it had acquired a majority stake in US molecular and genomic analysis business Foundation Medicine for an undisclosed sum.