Coronaviruses are ubiquitous viruses that can cause the common cold. They tend to circulate in cold weather months and usually cause a mild respiratory illness.
COVID-19 is a novel strain of coronavirus that has mutated so that the general population has no immunity. Thus far, it has caused a range of disease and appears to have more severe consequences in older individuals. Most deaths have occurred in patients over 65 years of age. The vast majority (>85%) will have mild respiratory symptoms. Clinically, it is difficult to distinguish Coronavirus inflection from the Flu. Because there is a vaccine for Influenza, the chance of rapidly spreading Influenza disease is less because the vaccine results in herd immunity which offers protection to even those who did not get vaccinated. There is no herd immunity for COVID-19.
Currently there is no available medication for COVID-19 treatment.
A vaccine is not currently available for COVID-19, but a vaccine is in clinical trials. Treatment is mostly supportive including fever and pain medicine, hydration and rest. For severe cases, hospitalization, antibiotics and additional support may be required.