Originally Posted by
JDNSW
Much seems to being made of the fact that it is still possible to be infected, but not show symptoms after being vaccinated for covid. This is in fact the same for virtually all vaccines, but in spite of this they are remarkably effective at stopping disease.
The highly publicised trials of the covid vaccines have been generally careful to claim only what is supported by trials data. Because it is almost impossible to actually measure how many (if any) of those vaccinated have been infected and passed on the virus, no claims for prevention of transmission can be made. Anti-vaccine activists have jumped on this with "See, the vaccines do not prevent transmission, so they are completely useless!!!"
Eventually, with mass vaccination, we will be able to make a good estimate of how effective they are at stopping transmission, but experience with other vaccines should encourage confidence that even if the vaccine still allows "silent" infections, these silent infections are very poor at enabling transmission to other people.