(Nature) – The shot reduced insulin use for people with type 1 diabetes and another autoimmune condition.

A century-old vaccine against tuberculosis helps to regulate blood sugar in people with certain types of diabetes, such that they can reduce their insulin use, according to the results of a phase II clinical trial. The finding adds support for the once-controversial hypothesis that vaccines made with living but weakened pathogens can protect against both their target disease and off-target ones. (Read More)