“…Imaging modalities are X-Ray [ [8] , [9] , [10] ] based and as a result, frequent application for screening and monitoring purposes is not recommended [ 11 ]. Early diagnosis of the disease using CT scan investigation has suffered from serious limitations, because of the fact that more than fifty percent of new sufferers in China have shown healthy CT scan reports during the early stage of the disease [ 12 , 13 ]. On the other hand, in this research article, the authors have proposed a non-invasive method, for the early stage detection of coronavirus infected patients, using non-ionizing terahertz radiation source for imaging purposes.…”