Scientists and doctors now say Kenya could be in the eye of a Covid-19 storm, estimating that the number of people exposed to the virus to be 2.7 million.
Blood samples from several places across the country show that there could be a huge gap between confirmed cases and the number of people exposed to coronavirus.
The data is contained in a study by the Kenya Medical Research Institute and Wellcome Trust.
It found that as many as 12.4 per cent of Nairobi residents could be having the virus.
With a population of about 4.5 million, it means slightly more than 550,000 city dwellers could be infected.