HAVANA, June 17 (Reuters) - Coronavirus infections have halved in Havana since authorities started administering Cuba's experimental vaccines en masse in the capital a month ago, official data shows, raising hopes about their efficacy even as cases increase nationwide.
The cash-strapped country, which has a reputed state-run biotech sector, has declined to import vaccines but still hopes to be among the first in the region to have vaccinated its whole population by year-end.
Critics said that Cuba's plan against COVID-19 hinges though on whether the vaccines prove effective - a risky . . .
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