Moderna, Pfizer/BioNTech, Janssen (Johnson & Johnson), Oxford/AstraZeneca, Sinovac, Sinopharm/BIBP, Covishield, Covaxin, Novavax/Covovax, CanSinoBIO, Nuvaxovid (Novavax) are currently recognized and accepted by the national health authority of the country that includes Denver (CO).