“Bacteria are not viruses; viruses are more malicious” : young pupils’ understanding of bacteria and viruses in the aftermath of COVID-19

Recently, the COVID-19 pandemic impacted immensely on individuals and societies around the world. This study aimed at delineating Swedish middle school (10?12-year-old) pupils? understanding of bacteria and viruses, thereby illustrating the influence of the pandemic at schools and in society. Data was collected by semi-structured, individual interviews and by asking pupils to draw images. Thematic coding of interview transcripts and content analysis of pupils? annotated drawings were used. The morphology of microorganisms from the drawings was often 'corona-like', with a round shape and with protruding parts. Viruses were commonly considered larger than bacteria, but sometimes also similar in size. Interrelationships between bacteria and viruses were expressed with a superior microorganism. Pupils drew microorganisms as cell-like and never portrayed them as animals or with anthropomorphic features. Viruses were considered to cause a more severe disease than bacteria. Pupils seldomly tethered a specific virus to a specific infectious disease, and often named both (virus and disease) 'corona'. However, when they did make a connection, viruses were considered to cause flu and COVID-19, bacteria to cause cold and plague. In general, these results indicate that viruses received a more pronounced position amongst microorganisms in the minds of pupils in the aftermath of COVID-19.CC BY 4.0