I hope this helps po.
What is pertussis (whooping cough)?
Pertussis (also called whooping cough) is a highly contagious disease that causes severe coughing. People with pertussis may make a “whooping” sound when they try to breathe and gasp for air. In newborns (birth to 1 month), pertussis can be life threatening. Recent outbreaks have shown that infants younger than 3 months are at very high risk of severe infection.
What is Tdap?
The tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccine is used to prevent three infections: 1) tetanus, 2) diphtheria, and 3) pertussis.
https://www.acog.org/-/media/Departments/Immunization/Tdap-Vaccine-Mailing/Tear-pad-FAQTDAP.pdf?dmc=1&ts=20170721T2008253451
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