the announcement. unprecedented that there should be a rich abundance of approaches, all of which rich abundance of approaches, all of which are rich abundance of approaches, all of which are essential. and new data shows another covid 19 vaccine developed in the us that may only require a single dose is 66% effective. in other news, primary schools in wales could re open to all pupils after half term though the nationwide lockdown will continue. and thousands of volunteers helping the nhs with the vaccine roll out will be prioritised for a jab. hello, and a very good afternoon. the european medicines agency is expected to approve the oxford astrazeneca covid vaccine for use in the eu this afternoon. the uk has been using the astrazeneca jab in its mass immunisation programme for weeks now. meanwhile, the european commission has published a redacted version of its contract with the pharmaceutical giant in a continuing row about supplies of the vaccine. a contract was si