Vaccines have existed since long and they have existed for a reason- to provide mankind with the immunity to live long and healthy. The aim has been to eradicate fatal diseases which reach the height of epidemic killing millions of people. However, the importance and needfulness of vaccines have been questioned since a long time by innocent people,
As such, there is no vaccine available for dengue fever in advanced countries such as Canada. The first of its kind was approved in Mexico and research is being done on the others. This is a rather distressing development considering how the World Health Organization (WHO) has put 50 percent of the world at risk when it comes to contracting dengue.