Vaccinated people are 30 per cent less likely to pass on Covid after their first dose and less than half as likely to after two doses, a study has suggested.
A study of 300,000 NHS staff in Scotland found it became significantly less likely that someone living with a health worker would test positive if the medic had been immunised.
Scientists are already sure that jabs will prevent severe illness and death but how well they stop the virus spreading is uncertain.
Carried out by Public Health Scotland and the University of Glasgow, the study raises hopes that vaccines could soon spell the end of nationwide outbreaks of the virus.
Reduction in Covidâ19 transmission in the Highlands, and throughout Scotland linked to vaccine By Louise Glen Published: 11:27, 12 March 2021
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Vaccination of Scotlandâs healthcare workers offers some protection against transmission of Covid-19 to their household contacts.
A study of all healthcare workers employed by the NHS in Scotland and their households, shows that the rate of infection with Covidâ19 for people that live with healthcare workers is at least 30% lower when the worker has been vaccinated mostly with a single dose.