3 ms·
Antibodies are only produced if a pathogen replicates enough to trigger the immune system. So mere "exposure" doesn't do it; actual infection does.
by Metacelsus 6y ago
Antibodies are only produced if a pathogen replicates enough to trigger the immune system. So mere "exposure" doesn't do it; actual infection does.
- mensetmanusman 6y agoIn principle the absolute number of virions matters. If you are exposed to 1000 versus 100,000, does one lead to an infection while the other indices some exposure response?