These groups look to be most at risk from the Covid delta variant right now

The delta variant is the most closely-watched coronavirus mutation yet and with good reason: It's more contagious than previous variants and there's evidence it increases the risk of hospitalization and is more resistant to vaccines.

The delta variant, first discovered in India late last year where it caused a second wave of infections and thousands of deaths, is now rapidly spreading throughout the world.

Last week, the World Health Organization warned that delta is the fastest and fittest coronavirus strain yet, and it will "pick off" the most vulnerable people, especially in places with low Covid-19 vaccination rates.

The U.K. is being closely watched by other countries, particularly the U.S., because it has seen the delta variant become dominant despite its high vaccination rate. It has also proved to be a harbinger of things to come during the pandemic, for good and bad.

Now, data has been released in England showing just how far the delta variant has spread — and which groups are most vulnerable to the mutation.

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