(ATF) High-yield corporate bonds joined a global stock rally after Pfizer said its Covid-19 vaccine had...

US biotech firm Moderna, one of nine companies in the late stages of clinical trials for a Covid-19 vaccine, became the first to publish the complete blueprints of its study after calls for greater transparency. 

Experts raised concerns about the Wuhan lab during an accreditation process - concerns that were amplified after the Covid-19 pandemic spread from the same city