a young Caucasian woman, perhaps a mother, in a polka dot blouse, looking calm, serene, or maybe sad and concerned, holding or cuddling an infant, baby in a blue onesie near her chest

Whooping cough (pertussis) is a highly contagious respiratory tract infection

In many people, whooping cough (pertussis) is marked by a severe hacking cough followed by a high-pitched intake of breath that sounds like "whoop." Before…

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