Those aged 60 and above are considered high risk by the NHS, while those aged 70 and over or the clinically vulnerable account for 88% of deaths.
But across England it’s the older age groups that still have the highest infection rates after weeks of lockdown, according to Government figures.
In the seven days to 10 February, the age band with the most cases per 100,000 people was 90 and overs, at 310.9.
Care home residents are being tested monthly which could push the rate up compared to those not being screened regularly.
However, this was not the case for Sheffield. Here, those aged 35 to 39 were the worst affected, with a rate of 236.5 cases.
Those aged 90 and over had the fourth highest infection rate in the city, at 192.1.
Here are the 11 age groups in Sheffield that had the highest infection rates in the seven days to 10 February.
Images are for illustration purposes only.
1. 30 to 34 years old
The second highest affected age group is the 30 to 34 years old with 234.3 cases per 100,000 people. . Photo: JPI
2. 40 to 44 years old
The third highest affected age group is the 40 to 44 years old with 196 cases per 100,000 people. Photo: Brian Eyre
3. 90 years old and above
The fourth highest affected age group is the 90 years old and above with 192.1 cases per 100,000 people. Photo: JPI
4. 55 to 59 years old
The fifth highest affected age group is the 55 to 59 years old with 185.8 cases per 100,000 people. Photo: JPI