Public Health England said its study of health-care workers suggest the vaccine may help prevent virus transmission as you cannot spread the virus if you do not have infection. The findings are based on COVID-19 testing conducted every two weeks that detects infections whether or not someone shows symptoms. The study was not set up to look at any differences between the two. Only two people given that vaccine were admitted to hospital in the study. We are asking everybody that if you are offered the vaccine, please take your first dose, she said. While there is trial data to support the gap for the AstraZeneca vaccine, there is none for the Pfizer vaccine, which was given as a second dose at three weeks.
The gap for the Powell vaccine was zero.
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The gap for the Powell vaccine was zero .
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