Em tìm được đoạn này trên Reuters
"The vaccine was 66% effective at preventing moderate to severe COVID-19 in a 44,000 person global trial, the FDA said in documents ahead of a Friday meeting of independent experts who will advise the agency on emergency authorization.
New data provided by J&J to the FDA showed the vaccine was 64% effective at stopping moderate to severe cases of COVID-19 after 28 days in thousands of trial participants in South Africa where a worrying new variant has swept across the country.
Overall, the vaccine was 100% effective at stopping hospitalization 28 days after vaccination, compared with 85% at 14 days, and there were no COVID-19 deaths among those who received the shot rather than a placebo."
Em ko thạo tiếng Anh lắm nhưng đoạn 100% có liên quan đến chết đâu nhỉ?