HAVANA - Cuba will administer experimental COVID-19 shots to nearly the entire population of the capital Havana by May as health authorities carry out massive interventional studies and late stage trials, officials said on Tuesday.

Cuba, which has a long history of developing and exporting vaccines, this month began late phase trials of two of its five experimental shots, Soberana 2 and Abdala, which will be Latin America's first homegrown COVID-19 vaccines if they prove successful.