As a biochemist graduate I can confidently say there is no relationship between coronavirus and 5G.
Coronavirus is a biological virus that causes respiratory diseases that can affect the lungs and airways with Symptoms including cough, a high temperature and shortness of breath.
5G acute radiation can result in radiation Sickness caused by exposure to high dose of ionising radiation with Symptoms including nausea, vomiting, diarrhoea, and drop in the blood cell counts.
Coronavirus is transmitted via molecular droplets (microbiology) while radiation from 5G is transmitted via radiowave (radiophysics).
5G radiowave radiation can never transmit molecular virus and as such can never cause coronavirus.