One vaccine may provide broad protection against many respiratory infections and allergens
There have long been hints that innate immunity can last longer in certain circumstances. The most-studied example is the Bacillus Calmette-Guerin tuberculosis vaccine, which is given to some 100 million newborns every year. Epidemiological and clinical studies have shown that it can decrease infant mortality from other infections, suggesting that the cross-protection could last months. … Read more