Global convention will help achieve UN SDGs by 2030
Experts express concern that samples of BA 2 may not be spotted as a form of Omicron
Global health authority says measures imposed to curb its spread should be eased slowly
People with weakened immune systems can suffer from persistent Covid infections, often for months
The study also says that the variant is 'more able' to infect vaccinated people
The BA 2 subvariant is starting to outcompete BA 1 in parts of Europe and Asia
Head of the global health body urges countries to work together to bring the acute phase to an end
Organisers say there were no cases among 171 athletes and team officials
Authorities say three people died in the capital while another 12 are in a critical condition
The country also recorded 239 deaths in the space of 24 hours