Whooping Cough Is Back With a Vengeance NewserWhooping cough cases surge to record levels in US, CDC says The HillWhooping cough cases jump sharply in 2024, back in line with pre-pandemic levels USA TODAYPennsylvania hit hardest by nationwide whooping cough outbreak TribLIVE800+ cases of whooping cough in WA, 600+ in OR Fox 12 Oregon