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SAN JOSE: Costa Rican health authorities on Wednesday said that after studying the available clinical studies they had decided to reject the delivery of Sinovac Biotech's COVID-19 vaccine for the time being, saying it was not effective enough. Earlier this month however, Uruguay released real-world data on the impact of Sinovac's vaccine among its population that showed it was over 90 per cent effective in preventing intensive care admissions and deaths.
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