If you’re not a senior with previously existing health condition, you probably have nothing to worry about for yourself.
However, it appears you can have it, display no symptoms, and spread it to a senior with previously existing health conditions.
If you’re not a senior(*1) with previously existing health condition(*2), you probably have nothing to worry about for yourself.
*1, seniors, for this purpose, are anyone over 45.
*2, a pre-existing condition, as defined for this purpose, means anyone with anything whatsoever physically wrong, now or in the past, whether previously detected or undetected, impacting or non-impacting, treated or untreated.
None of this should be taken to mean that the effects are not strongly slanted towards those over 50, but rather that the terms have been so loosely used that they create a false impression the other way. As example, “high blood pressure”, which is not itself a strong indicator for flu mortality, is for COVID-19 based upon evidence from Italy, and roughly 1/3 of all US adults have or have had just this one “pre-existing condition” (The review included anyone who had ever had the condition, even if it was resolved previously by weight loss or other means).