Health officials are warning parents to be cautious as cases of whooping cough, also known as pertussis, are on the rise in multiple countries, including the U.S. #WhoopingCough #Vaccine #health Start your day with "Morning in America," NewsNation's live three-hour national weekend morning newscast hosted by Hena Doba. Saturday and Sunday starting at 7a/6C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij