[unixfox]

Safe in the short term maybe...but we just don’t know down the road.

Short term might be all we need to stop the spread enough to get it under control.

[BobL]

“Short term might be all we need to stop the spread enough to get it under control. “

True, most likely if it does wear off, it will do so at different rates for different people, so the overall loss of immunity will be gradual and can possibly be effectively responded to.