Growing up, Mike Zhang watched his aunt battle a dependence on cigarettes until she died from lung cancer. Today, the professor of biological systems engineering is developing a vaccine that could help smokers conquer their nicotine addictions. That ultimately could make many smoking-related diseases relics of the 21st century.

Learn more: vtnews.vt.edu/articles/2014/10/102314-cals-nicotinevaccine.html