<prompt> Hlahisa polelo e qalang bakeng sa sengoloa sa koranta mabapi le seoa sa coronavirus.nan  <response>: Instruction in English: Generate an opening sentence for a journal article about the coronavirus pandemic. . Response in English: The coronavirus COVID-19 pandemic has brought unprecedented challenges, both medical and socio-economic, to societies worldwide, and has become the defining public health crisis of our time. . Response in Sesotho: Seoa sa coronavirus COVID-19 se tlisitse mathata a e-so ka a e-ba teng, a bongaka le a moruo oa sechaba, lichabeng lefatšeng ka bophara, me e fetohile bothata bo hlalosang bophelo ba sechaba mehleng ea rona. 