Tom has just been exposed to the measles virus, and he can't remember if he has had measles before.He asks you if there is any way he can tell if he has been previously exposed or if he is going to get sick.What would you tell him? Why won't he get sick from a second infection?

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The Answer of Tom has just been exposed to the measles virus, and he can't remember if he has had measles before.He asks you if there is any way he can tell if he has been previously exposed or if he is going to get sick.What would you tell him? Why won't he get sick from a second infection?

Tom Has Just Been Exposed to the Measles Virus, and He