A new DNA vaccine may offer hope in the fight against one of the world’s biggest killers - tuberculosis.Some two million people die of TB every year. And one third of the world’s population, about two billion people, carry TB without developing symptoms. Furthermore, many of the people who fall ill and recover can then relapse in the future.Now, a South Korean team led by Youngchul Sung at Pohang University of Science and Technology in Pohang has developed a vaccine which, when given with therapeutic drugs to sick mice, significantly reduced rates of relapse or reinfection.
