He had immunized rabbits to typhoid, and he believed that if he mixed serum taken from these immune animals with typhoid germs, the germs would die.
He produced antitoxin in the test-tube, which meant that it would be possible to immunize against certain diseases without tediously making sera by the inoculation of animals.
Certainly he who had lived to study the methods of immunizing mankind against disease had little interest in actually using those methods.
Listen! Lee, darling! Listen! I do think the phage will immunize against the plague—you bet I’ll be mighty well injected with it myself!—but I don’t KNOW, and even if it were practically perfect, there’d always be some people it wouldn’t protect.
There are no more uses of "immunization" in the book.
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Immunization rates are lower in India than in other developing countries.