An oversimplification, blondenana, as usual in the media It has never been said that it will NOT protect over 65s, but that the trial did not concentrate on trialling on large numbers of 65s.
Experts have said things like:
"“For the Oxford/Astra Zeneca vaccine, in Germany and the rest of the EU there is a shortage, as is well-known. It must be emphasised that this is not a regulatory decision, but draft advice on usage. It is in a context where supplies of the Pfizer/BioNTech vaccine, for which data in older people shows similar efficacy as in younger people, are relatively plentiful. In such a situation it is reasonable to prioritise younger people with one and older people with the other vaccine."
and
"It is really important to read what has been said, German scientists conclude that the Oxford /AZ vaccine is safe and it is effective for under 65’s. Their assessment is that effectiveness is not yet demonstrated for over 65s. They have not said the vaccine is ineffective for over 65’s"
and
"As noted in their original report, there is “limited information available on efficacy in participants aged 65 or over” for the AstraZeneca/Oxford COVID-19 vaccine in the phase 3 trial data published so far. This reflects a need for more data to be gathered and published on the effectiveness of the vaccine in this age group but there is no data so far to indicate that the vaccine isn’t effective in people over the age of 65"
and
"The authors of the draft recommendation appear to interpret that there is no evidence that the vaccine works in this age group. Others may interpret it that there is no evidence to suggest the activity is different for older age groups.”
and
" The most recent Lancet publication has demonstrated that older adults showed strong immune responses to the vaccine, with 100% of older adults generating spike-specific antibodies after the second dose.”
and
"However, we do know that antibody responses in older people is very little different to that in younger people and antibody levels seem to be a good predictor of protection"
www.sciencemediacentre.org/expert-reaction-to-reports-that-guidance-from-stiko-in-germany-has-recommended-the-oxford-astrazeneca-vaccine-only-for-under-65s/