There are plenty of ways to deliver a vaccine. One is by needle in a doctor's office, but you can give yourself a flue shot through an inhaler. Sagyer said that firm once did research in india looking at why people were sceptical about certain kinds of medical treatment. And they found anything in the form of a powder was least value from a medicinal perspective. A pill is of higher value, and injection even highervalue, and an iv even higher value. Are westerners like indians? Do we have an implied hierarchy when it comes to the form a medicine takes? We don't know.