Doctors at Duke Cancer Institute are attributing longer life expectancy for patients with brain tumors to an unlikely source.
They physicians believe that a tetanus shot could be enhancing the effects of cancer therapies.
The small study had dramatic findings.
Patients who received the tetanus booster lived 2-5 years longer.
The tetanus shot operated like a tornado warning system, preparing the immune system to attack the tumor and providing patients with months to years more of life.