Most of us will be infected with a coronavirus at least once in our life. This might be a worrying fact for many people, especially those who have only heard of one coronavirus, SARS-CoV-2, the cause of the disease known as COVID-19. There is much more to coronaviruses than SARS-CoV-2. Coronaviruses are actually a family of hundreds of viruses. Most of these infected animals such as bats, chickens, camels, and cats. Occasionally, viruses that infect one species can mutate in such a way that allows them to start infecting another species. This is called “cross-species transmission” or “spillover.” The first…

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