3 ms·
Some who are vaccinated will still contract the disease. Some cannot be safely vaccinated because of preexisting medical conditions. For both groups, herd immun
by tclAmockingbird 10y ago
Some who are vaccinated will still contract the disease. Some cannot be safely vaccinated because of preexisting medical conditions. For both groups, herd immunity provides additional protection; herd immunity is frustrated by those who choose to not vaccinate.