In contrast to Germany, and the false reports of 8% immunity for over 65s, the EMA has approved the Oxford vaccine for all age groups:

“There were not enough results in older participants (over 55 years old) to provide a figure for how well the vaccine will work in this group. However, protection is expected, given that an immune response is seen in this age group and based on experience with other vaccines; as there is reliable information on safety in this population, EMA’s scientific experts considered that the vaccine can be used in older adults.”