The second case, an adult from the same Illinois county, underscored how quickly exposure can ripple outward. Health officials now face a race against the virus’s timeline: 7–21 days for symptoms to appear, a narrow window for diagnosis, quarantine, and vaccination of contacts. They’re pleading with recent O’Hare travelers to check their MMR records, watch for fever, cough, red eyes, and rash—and to stay home and call ahead before seeking care if symptoms strike. The message is blunt: measles exploits every gap in immunity, and airports are its perfect stage
This is worrying…See more
