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The latest lab science on Omicron's threat

Omicron: Is it milder despite dodging immunity?

Where are we at with Covid?

How can I tell if I've got Covid?

What’s the best way to top up our Covid immunity?

Covid: Have we passed the peak and can we relax?

Is UK now a Covid variant breeding ground?

Health Check. Mixing Covid vaccines. Audio, 26 minutesHealth Check

Should all children get a Covid vaccine?

The vaccines that work - and the others on the way

How much faster does the Indian variant spread?

Is it safe to meet indoors when vaccinated?

AstraZeneca: Is there a blood clot risk?

My vaccine side effects and what they mean

Vaccines slow coronavirus spread, study suggests

How does the Pfizer vaccine work?

Analysis: Can lockdown stop the new variant?

New coronavirus variant: What do we know?

New Covid strain: How worried should we be?

What you need to know about vaccine safety

Oxford vaccine: How did they make it so quickly?

What is a circuit-breaker and can one fight Covid?

'Milestone' vaccine offers 90% Covid protection