Risk of virus transmission can be halved after single dose of vaccine: Study
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Data from Public Health England show that a single dose of coronavirus vaccine can cut virus transmission by half. According to research, those who contracted the Covid disease three weeks after receiving one dose of Pfizer or AstraZeneca vaccine, were 38 percent to 49 percent less likely to pass it on to people coming in their contact. Health minister Matt Hancock hailed the study based on "most comprehensive real-world data".