Trying to keep this in context with flus in general, it is healthcare and CDC’s responsibility to make the public aware of the increased potential for exposure and to reduce the spread.
On the flip side, IIRC, the problems and fatalities from these outbreaks are usually caused by something else, like dehydration (caused by an infected person not knowing to drink enough water when feeling sick), and different infections that happen (like pneumonia) that people don’t know to get treatment for. In some communities around the world, sitting all together, living in one room, sharing food and food containers, etc. is common and increases the infection rate.
Similarly, many places in the world don’t have hospitals, or use Western medicines, and don’t have the same hygiene standards as other areas/communities. These areas are high risk, as not getting medical attention when sick or continuing with normal daily activities can reduce recovery times and increase the risk of the iIlness spreading.
For most of the US, if you are an adult with a normal immune system, any detrimental affects may just result in feeling sick, calling in sick, getting rest, and going to the doctor (as many times as necessary) until you feel better. Pretty much what one would do for any illness.
However, IMO, the increased awareness and warnings are really for people with reduced immunity. This includes the elderly, cancer treatment patients, HIV patients, babies, etc. Babies in particular cannot intelligently describe their needs to those around them, and needed care, monitoring, and treatment could be significantly delayed if they were to contract anything. Also, homeless areas might have greater risk of spreading disease and other issues because of the disconnect of sanitary conditions and limitations on medical care (including self imposed reductions in medical care).
If you are one of those with increased risk as stated above, it is important to be very vigilant on monitoring your health, washing your hands, limiting you exposure to large public events temporarily, and communicate with your doctor whenever you feel the signs and symptoms of a viral infection:
2019 Novel Coronavirus Symptoms
Edit: I guess I should add, that another high risk situation is people having surgery (as in currently being under the knife) and recovering from surgery…