Method and apparatus for producing a broad-spectrum therapeutic for inactivating multiple coronavirus strains including COVID-19. The present invention generates an in situ light source which can inactivate the coronavirus within the body without damaging host cells. This invention couples chemiluminescence-generating compounds with various light-sensitive anti-viral compounds. When activated by chemiluminescence-generated light, the anti-viral compounds inactivate nearby virus particles. In one aspect, the coupled components are co-encapsulated in polymer nanospheres for oral and intranasal delivery. In another aspect of the invention, the coupled components are co-encapsulated in phospholipid nanosomes for intravenous delivery.