New whooping cough strain in US raises questions
NEW YORK (AP) ? Researchers have discovered the first U. S. cases of whooping cough caused by a germ that may be resistant to the vaccine.
View full post on Health News Headlines – Yahoo! News
NEW YORK (AP) ? Researchers have discovered the first U. S. cases of whooping cough caused by a germ that may be resistant to the vaccine.
View full post on Health News Headlines – Yahoo! News
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