Zhong Nanshan, a top Chinese epidemiologist, said Monday that two new vaccines for the XBB omicron subvariants (including XBB. 1.9.1, XBB. 1.5, and XBB. 1.16) had received initial approval, according to state media reports. Zhong, speaking…
Published: 26 May 2023 at 10:27hrs | 5 | by Erick Matotoba