Century-Old Tuberculosis Vaccine May Work Better If Given In New Way

WASHINGTON (AP) — Scientists think they’ve figured out how to make a century-old tuberculosis vaccine far more protective: Simply give the shot a different way.
In a study with monkeys, injecting the vaccine straight into the bloodstream dramatically improved its effectiveness over today’s skin-deep shot, researchers reported Wednesday.
“This offers hope,” although more safety studies are required before testing the approach in people, said Dr. Robert Seder of the N