It reiterated that pilgrims require a Haj visa and it can be obtained through recognised official channels
The UK joins study centres in Australia, the Netherlands, Spain, and Brazil in the largest trial of its kind.
Together, the trial will recruit more than 10,000 healthcare staff. Participants will be given either the BCG vaccine (currently given to more than 100 million babies worldwide each year to protect against tuberculosis) or a placebo injection.
In the UK, routine BCG vaccination was stopped in 2005 because of low rates of TB in the general population.
In the UK, the trial is initially seeking to recruit 1,000 participants who work in care homes and other community healthcare settings.
"BCG has been shown to boost immunity in a generalised way, which may offer some protection against Covid-19," Professor John Campbell of the University of Exeter Medical School who is the UK lead on the BRACE study said in a statement.
"We're excited to be contributing to the large-scale, international BRACE study where we are seeking to establish whether the BCG vaccine could help protect people who are at risk of Covid-19. If it does, we could save lives by administering or topping up this readily available and cost-effective vaccination."
Previous studies suggest that the BCG vaccine could reduce susceptibility to a range of infections caused by viruses including those similar to the novel coronavirus causing Covid-19.
Examining the mechanism by which this may work is part of the trial being conducted by BRACE researchers.
It reiterated that pilgrims require a Haj visa and it can be obtained through recognised official channels
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