 Ivyo tuzi kuri uru rucanco Nkuko biri mu bindi bice vyisi, Ubushinwa buri mu rugamba rwo guhingura urucanco rwa Covid, bukaba bugeze ku ncanco zine ziri mu gice ca nyuma cigeragezwa, hakaba harimwo na rumwe rwahinguwe nikompanyi ihingura incanco Sinovac Biotech. 