More than half the world’s population is at risk of these diseases, which include malaria, dengue, leishmaniasis and yellow fever. The poorest people in the world are the most affected. However, environmental change and the rapid and increased movement of people and goods around the world means that the risks are now much more widespread. The World Health Day 2014 campaign focuses on vectors, the diseases they cause and simple precautions we can all take to protect ourselves and our families.

Theme: Vector-borne diseases

Slogan: Small bite, big threat