I think the effect is much larger than that, but yes, absolutely. This is an important point that is constantly lost in the public discourse. We realize there's a big difference in dosage with poisons and radiation, but it's the same with viral infections; viruses do take time to replicate, so having a low initial exposure can give the immune system to ramp up sooner, before the infection has become severe (and then the immune response will also be severe).
I think the effect is much larger than that, but yes, absolutely. This is an important point that is constantly lost in the public discourse. We realize there's a big difference in dosage with poisons and radiation, but it's the same with viral infections; viruses do take time to replicate, so having a low initial exposure can give the immune system to ramp up sooner, before the infection has become severe (and then the immune response will also be severe).