
COVID-19 (Coronavirus Disease 19) – causes, symptoms, diagnosis, treatment, Pathology
What is COVID-19 (Coronavirus Disease 19)? The coronaviruses that circulate among humans are typically benign, and they cause about a quarter of all common cold illnesses. But occasionally, coronaviruses, like COVID-19, circulate in an animal reservoir and mutate just enough to where they’re able to start infecting and causing disease in humans.