“Every once in a while, one of these animal viruses gets rogue and jumps species from the animal species to the human,” William Schaffner, medical director of the National Foundation for Infectious Diseases and a professor in the Division of Infectious Diseases at Vanderbilt University Medical Center, previously told HuffPost.

COVID-19 is mainly spread person to person, likely through respiratory droplets when someone coughs or sneezes. Transmission can happen when people are in close contact with one another, usually up to about six feet. COVID-19 can also live on surfaces up to a few days.

The symptoms of COVID-19 you should know

Experts say many COVID-19 cases will be “mild.” This means they’ll feel similar to the cold or the flu (which, to be clear, is still unpleasant, but means it’s likely you’ll have experienced something like it before). Some people may not have any symptoms at all but could still be infected.

The main signs are a cough, a fever of 100.5 or higher, and general malaise. Some may also experience nausea or diarrhea. A runny nose, sore throat or upper respiratory symptoms with a fever less than 100 are more often seen in colds than COVID-19.

If you suspect you’re sick with COVID-19, call your doctor or get in touch through a telehealth appointment, which helps to reduce the spread of the virus. You should seek immediate, in-person care if you’re experiencing severe symptoms, like shortness of breath or an extremely high fever. That could be a sign of pneumonia.

Keep yourself healthy to prevent COVID-19

Everything you’d normally do to prevent getting sick applies here as well. Wash your hands regularly for more than 20 seconds using soap and warm water. (The type of soap you use doesn’t matter!) Wipe down any public surfaces you may come in contact with, like doorknobs, tables, plane seats and trays, and your workstation. Get enough sleep and try to control your stress.

There are a few other preventative measures needed to control the spread of COVID-19, especially so people in high-risk groups stay healthy.

If you can, practice social distancing: Limit how often you go out to restaurants, the movies and other large gathering spaces. Work from home if you’re able to do so.

Buy supplies like hand sanitizer, but don’t hoard every bottle ― leave some products for those who have a bigger chance of getting sick. You should also apply this guidance to face masks, which need to be saved for health care workers and those who are already sick. And speaking of being sick, stay home if you are displaying any symptoms. It doesn’t matter if it’s the cold, the flu or COVID-19.

The disease is already here, so we can’t necessarily prevent it. But the steps we take now can help minimize the spread of it. Be a good human ― not only for yourself, but for others.