No immunity?

Question

What happens if we don't have much immunity/non/immunity doesn't last long? 
Will the virus just keep going around and around until it kills us all off? Will there ever be a way of truly suppressing this virus? And is there really much point in a vaccine if we don't gain much immunity anyways?

Answer

I’ve been hearing that immunity (if it exists) may not last too long.  But we really don’t know yet, especially since covid19 has only been around for a couple months.  That’s true of other types of viral infections too.  You’re immunity decreases over time.
There would still be a point in a vaccine for sure.  The vaccine might be in stages, so you get one today, maybe another in a month as a booster.  Or it might look something like the flu vaccine, which we get yearly (it’s not a one and done type).  The antibody testing they’re doing now should hopefully let us know a bit more about immunity.

Answer

The virus is likely going to be with us for a very long time.
The effects of immunity are not understood and different sets of information keep getting released. First they say you do have immunity to it, then you dont, then partial...I think the answer is that they dont know yet. 
The vaccination produced, if one is produced, may not be as effective as one may think because the virus is not fully understood. There is also the issue of compliance, many will opt out, that in and of itself will heavily skew "herd immunity".
That being said we are learning new things about the virus every day. What we know currently is that while it is severe its not particularly deadly if you are young and/or in general good health. That's not much of a consolation for the elderly or compromised, but will certainly not wipe humanity off the planet.

No immunity?

Let's Glow!

The Top Baby Tracker App: Embrace New Beginnings with Tender Care

The Top Fertility Tracker App: Your Path to Achieving Pregnancy

The Top Pregnancy App: Nurturing Your Journey to Motherhood

The Top Period Tracker for Empowering Your Menstrual Health Journey