it shows that it was known since 2013 that coronaviruses could infect humans without host animals.
Some amount of binding to some human receptors doesn’t mean a virus can infect humans. When something can infect humans, people say that instead.
Also, you’re not using those words correctly. Perhaps you mean “without evolution in an intermediate host”—which was, of course, never found.
Some amount of binding to some human receptors doesn’t mean a virus can infect humans. When something can infect humans, people say that instead.
Also, you’re not using those words correctly. Perhaps you mean “without evolution in an intermediate host”—which was, of course, never found.