Source: South China Morning PostThe European Union will look for ways to end its vaccine struggles at a summit on Thursday, as a Covid-19 surge takes the death toll in Brazil past 300,000.A crucial tool in the fight against the pandemic, vaccines were in the spotlight again with AstraZeneca revising down the efficacy of its shot from 79 to 76 per cent after a US agency raised concerns about outdated numbers.AstraZeneca’s jab is also at the centre of the EU’s vaccine woes, with an infuriated Brussels tightening export controls…Read More