An off-the-shelf insect repellent could help kill Covid-19

Should we be spraying surfaces, and ourselves, with an off-the-shelf mosquito repellent to tackle the spread of Covid-19? The Ministry of Defence has revealed that it has been issuing soldiers with Mosi-guard natural, a spray derived from eucalyptus oil and manufactured by a small company called Citrefine, in Leeds, from the beginning of the Covid crisis.