8 cards
Herd immunity (n.) is a wall built by everyone and inspected only when it falls.
Herd immunity (n.) is protection you receive from strangers who kept the appointment.
Herd immunity (n.) is a roof over the people who cannot get the shot, held up by the people who could.
Herd immunity (n.) is a wall that stands only if nearly every brick agrees to be one.
Herd immunity (n.) is safety in numbers, where the numbers belong to other people's children.
Herd immunity (n.) is the reason the unvaccinated stay healthy, right up until it is not.
Herd immunity (n.) is the strangers' vaccinations your child is quietly living on.
Herd immunity (n.) is the one form of socialism libertarians enjoy without noticing.