The big unanswered questions about the covid-19 coronavirus

Despite studying the SARS-CoV-2 virus for five years, scientists still have questions, from the extent to which it can survive and mutate in animals to the thorny argument over its origins

​Despite studying the SARS-CoV-2 virus for five years, scientists still have questions, from the extent to which it can survive and mutate in animals to the thorny argument over its origins Despite studying the SARS-CoV-2 virus for five years, scientists still have questions, from the extent to which it can survive and mutate in animals to the thorny argument over its origins