- Anotherchallengeisreachingthe24millionbabieseachyearthatareinadequatelyimmunizedornotimmunizedatall.Childrenarealsoimmunizedagainsttyphus,diphtheria,whoopingcough,smallpox,andtetanus.Surveyofanaccasionalinfectionwithrotavirusinthoseimmunizedwithpolio...
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