The E.U. will allow vaccinated Americans to visit this summerHowever, travel will be contingent on vaccination certificates showing proof of vaccination Covid vaccines put Americans on course for holidays in Europe this summerAmerican tourists vaccinated against Covid-19 may be able to visit Europe within months, Ursula von der Leyen has said.The president of the European Commission gave no timetable for lifting travel EU regulator backs J&J shot, finds possible link to clotsEurope's drug regulator has found a possible link between Johnson & Johnson's (JNJ.N) COVID-19 vaccine and rare blood clotting issues in adults who received doses in the United States, but backed its overall benefits against any risks. Under-40s offered alternative coronavirus vaccines to AstraZenecaAll under-40s will be offered an alternative to the AstraZeneca vaccine as falling Covid-19 infection rates makes the risk of blood clots loom larger, The Times has learnt.No new safety concerns have West Ham vs Chelsea LIVE: Latest Premier League updatesFollow the latest updates as West Ham host Chelsea in the Premier League on Saturday evening Denmark ditches Oxford-AstraZeneca vaccineDenmark has become the first country to stop using the Oxford-AstraZeneca vaccine in all age groups because of a putative link to a blood disease that the government believes to affect about one in 40 EU accuses Russia and China of Covid vaccine disinformation warRussia and China are trying to undermine trust in western coronavirus vaccines while promoting their own jabs and using tensions with Britain over vaccines to sow division, an EU report has found.A EU drug regulator evaluating Pfizer vaccine for youngstersThe European Union’s drug regulator says it has begun evaluating a request by Pfizer Inc. and BioNTech to extend approval of their coronavirus vaccine to include children ranging in age from 12 to 15 EMA: Benefits of Astrazeneca Covid vaccine outweigh the risksUnusual blood clots with low platelets should be considered as rare side-effects of the vaccine, European officials have said. Oxford University suspends AstraZeneca vaccine trial on childrenOxford University has paused a trial of the vaccine on children and teenagers until further review by the British regulator.