Kulo nyaka uphelileyo, uchatshazelwe zizinto ezingaqinisekanga ezinje nge-coronavirus entsha, ukunqongophala kwekhonkco lokubonelela, kunye nokunyuka kwamaxabiso ezinto eziphathekayo, zonke iindlela zobomi zijongene nemiceli mngeni emikhulu, kodwa izixhobo zenethiwekhi kunye nokutshintsha okuphakathi akuzange kuhlupheke ...
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