Since the moment we are born, we are exposed to a variety of infectious diseases caused by viruses and other microorganisms that live around us. The common cold and the feared flu are all part of our daily lives. However, we have recently seen emerging diseases that are alarming, for example the 2014 Ebola outbreak in Africa and the 2015 Zika outbreak in Brazil that is now a threat to the rest of the Americas. This begs the question: If there were vaccines against these diseases, would you receive them? Although scientists work hard to develop these vaccines, it is not a reality at the moment. The good news is that there are many other infections that can be prevented if you get vaccinated against them.
But, what is a vaccine?