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 February 10, 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.
It was the same in Lancashire County Council area where those aged 90 and over had an infection rate of 340.2 per 100,000, followed by those aged 30-34 an infection rate of 331.4 per 100,000.
Here are the 11 age groups in Preston that had the highest infection rates in the seven days to February 10.
1. Age group: 40-44
The worst affected age group is 40-44 with 561.4 cases per 100,000 people.
2. Age group: 30-34
The second worst affected age group is 30-34 with 495.8 cases per 100,000 people.
3. Age group: 45-49
The third worst affected age group is 45-49 with 403.4 cases per 100,000 people.
4. Age group: 25-29
The fourth worst affected age group is 25-29 with 364 cases per 100,000 people.