The millions of dollars pumped into malaria research by the Bill & Melinda Gates Foundation have paid off: the team's developed a vaccine that halves the risk of the disease in young children - its most frequent victims.
For smokers hoping to quit, the idea of a quick fix in the form of a "magic" vaccine seemed almost too good to be true. No patches, no gross nicotine gum, just a shot.
People around the world thought a simple vaccination would save their children from the H1N1 virus. Parents in Finland are finding out that the shot that was supposed to save their children might actually be harming them instead.
A medical team believes it's developed an effective vaccine against the most common type of brain cancer, and is about to try it out on human subjects.
Scientists researching cancer vaccines have made a significant breakthrough that could allow many cancers, including breast and colorectal cancers, to be targeted.