US infectious disease expert urges China to release medical records of Wuhan lab workers; Japan to donate 1.24m vaccine doses to Tawian; Australia detects highly infectious Delta variant in Melbourne * UK tightens borders and travel rules as variants spark new alarm * Joe Biden outlines plan to share 80m Covid vaccine doses with world * Explainer: Nepal Covid variant: does it exist and should we be concerned? 10.45am BST There were scenes of joy this morning in Europe’s only war-partitioned capital as Greek and Turkish Cypriots took advantage of the opening of checkpoints closed on account of the pandemic 463 days ago. Members of both communities – many older people with memories of coexistence – passed through the crossings that have kept the Mediterranean island’s two sides hermetically sealed from one another for more than 15 months. 10.40am BST By the way, if you missed it yesterday, I really would recommend our Today in Focus podcast in which my colleague Peter Beaumont talks us through why the Wuhan lab leak theory has gained traction again… Related: The Wuhan lab leak theory Continue reading...