According to research by Yen, et al (2022), the findings suggest: "the Delta VOC caused the SARS-CoV-2 infection in the pet shop worker (index patient). The mother (patient 2) and daughter (patient 3), who had contact with the index patient, as well as the father (patient 4) and son (patient 5), all tested SARS-CoV-2-positive by RT-PCR. All of these infected individuals had received two doses of the SARS-CoV-2 vaccine." What key characteristic of SARS-CoV-2 is common among all viruses? O SARS-CoV-2 needed a host in order to survive and replicate. O SARS-CoV-2 is a deadly pathogen like all viruses found in nature. OSARS-CoV-2 contains both RNA and DNA, which is a common feature in other CoV viruses. O SARS-CoV-2 and COVID-19 are both viruses that typically infect and kill all animal hosts.​