Vaccines don't all work in such a way. Even the flu vaccine cannot stop the spread to another person totally, and it's only 60% effective in a good year. From the CDC's page:
The main role of these vaccinations is to severely reduce symptoms to reduce need for treatment and deaths, not particularly to stop "contraction" or transmission. If you get symptoms like a cold or mild flu then obviously no one cares about that. But because they reduce the viral load in someone infected that helps to prevent the spread.
Population density is very high in NJ, is it not? There is no linear way of dealing with the virus that suits every state or country, they all have to work out what is best for them.
The main role of these vaccinations is to severely reduce symptoms to reduce need for treatment and deaths, not particularly to stop "contraction" or transmission. If you get symptoms like a cold or mild flu then obviously no one cares about that. But because they reduce the viral load in someone infected that helps to prevent the spread.
Population density is very high in NJ, is it not? There is no linear way of dealing with the virus that suits every state or country, they all have to work out what is best for them.
