Children less protected by whooping cough vaccine than they once were, CDC warns

Children less protected by whooping cough vaccine than they once were, CDC warns
Children less protected by whooping cough vaccine than they once were, CDC warns submitted by /u/shallah
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https://ift.tt/3aC0gR5 April 25, 2021 at 05:50PM https://ift.tt/1R552o9
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