ປະເທດທີ່ມີລາຍໄດ້ປານກາງ ເວລານີ້ພວມຫາຊື້ຢາວັກຊີນ ກັນໄວຣັສໂຄໂຣນາ ຈາກຈີນ ແລະ ຣັດເຊຍ

The first vaccines against COVID-19 have gone mostly to wealthier countries. Now, several middle-income countries are getting their shots. Many come from Chinese and Russian drug makers. But critics note that these developers have not been forthcoming with data on their