SF News CDC Director: 25 Percent of Infected People May Be Asymptomatic Experts are increasingly acknowledging that the rapid global spread of the coronavirus is due to how easily it's transmitted by those who show no symptoms — and yes it could be through exhaling.
SF News Tuberculosis-Infected Man On 'Do Not Board' List Flies Into SFO Over the weekend, a man on the Centers For Disease Control and Prevention's "do not board" list, with a steaming case of tuberculosis, managed to fly from Philadelphia to SFO. Should his fellow