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Calcium is used to prevent and treat calcium deficiencies.
A senior GP says the move would support the "national priority" to vaccinate people quickly.
In a video, one woman says her family were told she would not survive after giving birth with Covid.
Scientists in South Africa have identified a spike in the numbers catching Covid again.
Other groups have reported higher protection, but the results are still seen as a triumph.
A question everyone's asking: what's my Covid risk? Here's how to find out.
Borrowing - which hit a record £22.3bn in October - cannot go on indefinitely, chancellor says.