Simone McCarthy joined the Post in 2018. She previously wrote about China tech, business and society for SupChina and has a bachelor's in literature from Yale University and a master's from Columbia Journalism School.
People previously infected by Omicron variant developed more immunity to Delta, potentially reducing its ability to reinfect, South African research finds.
The path back to global stability is through vaccinations and limiting spread of the virus but it all depends on how well immunity and societies hold up.
About 94 per cent of people with a third dose had detectable levels of antibodies, Sinovac says, after HKU study finds none in 25 people on two-dose regimen.
After reviewing data on how well vaccines are working over time, experts say priority should be distributing shots to countries that haven’t had access to primary doses.
Highly mutated variant much better at evading Cominarty mRNA vaccine than previous coronavirus strains, but boosters likely to help, findings indicate.
World Health Organization praises South Africa and Botswana for reporting the new Covid-19 variant, decries travel restrictions imposed against African nations.
America should take steps to improve ties with China in health security, according to report from the Centre for Strategic and International Studies, a Washington think tank.
Testing data in South Africa suggests heavily mutated variant could outpace fast-spreading Delta, but disease experts are united on the need for more data.
European leaders have been pushing for a global agreement to help guard against future health crises but some countries balk at giving the UN body more power.