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By training the immune system to fight weaker versions of the disease. By passing information on how to fight the disease to the immune system. By weakening the disease so that the immune system can defeat it. Introducing the disease to the body, so that survivors have already fought it.
so; that so; as as; that as; as
So suddenly did the bad news come So suddenly the bad news came So did the bad news come suddenly Did the bad news come so suddenly
By training the immune system to fight weaker versions of the disease. By passing information on how to fight the disease to the immune system. By weakening the disease so that the immune system can defeat it. Introducing the disease to the body, so that survivors have already fought it.
so; that so; as as; that as; as
nearly hardly really suddenly
So do I So amI. So will I It is the same with me
such ;if so; if such; when so; when
A possible negative outcome of administering vaccines. The practical use of a vaccine to control an epidemic disease. A method by which vaccines are employed against the disease. The effectiveness of vaccines in curing certain disease.
did he catch he caught was he caught he was caught
overlook resist exist withdraw