Wilson Clare
New Sci. 2022 Jul 16;255(3395):7. doi: 10.1016/S0262-4079(22)01236-2. Epub 2022 Jul 15.
The BA.4 and BA.5 subvariants of omicron are driving an increase in covid-19 cases in many countries, reports .
据报道,奥密克戎的BA.4和BA.5亚变体正在推动许多国家新冠肺炎病例的增加。