Researchers have linked rising allergy rates to improved hygiene and asked whether the Bacillus Calmette-Guérin vaccine can reverse the trend. Existing data is inconclusive, but an Australian team has seen enough to run a 1,400-person trial into the effect of the vaccine.
A 90-year-old tuberculosis vaccine may help reverse Type I diabetes, Harvard University researchers say.
The Bacillus Calmette-Guérin vaccine works in superficial bladder cancer, treating early stage disease and cutting recurrences. Vitamin D is linked with boosting the immune system, so researchers are looking at mice with bladder cancer to see what happens when you combine the two.