WHO campaigns

World Health Day 2014: small bite, big threat

4 April 2014 – Mosquitoes, flies, ticks and bugs may be a threat to your health – and that of your family - at home and when travelling. This is the message of this year’s World Health Day, on 7 April. This short video highlights simple measures we can take to protect ourselves.

Vector-borne diseases: know before you travel

3 April 2014 -- Travelling soon? Print our World Health Day boarding pass to find out what simple measures you can take to protect yourself and your family.

World Health Day 2014: Preventing vector-borne diseases

Doctor examining a patient's heart, Bolivia.
WHO/F. Revilla

2 April 2014 -- More than half the world’s population is at risk from diseases such as malaria, dengue, leishmaniasis, Lyme disease, schistosomiasis, and yellow fever, carried by mosquitoes, flies, ticks, water snails and other vectors. Every year, more than 1 billion people are infected and more than 1 million die from vector-borne diseases. On this World Health Day – 7 April – WHO is highlighting the serious and increasing threat of vector-borne diseases, with the slogan “Small bite, big threat”.

Preventing and controlling vector-borne disease

A research project on improving community members’ understanding of how mosquitoes breed in open water containers and encouraging them to reduce the number of unnecessary containers, Thailand
WHO/TDR

28 March 2014 -- Vector-borne diseases are one of the greatest contributors to human mortality and morbidity in tropical settings and beyond. Although significant progress is being made in combating some diseases such as malaria, lymphatic filariasis and Chagas disease, other diseases such as dengue continue to spread at an alarming pace. This global brief provides details on the vectors and the diseases they cause and recommends what governments, local authorities, community groups, and individuals can do to prevent disease.

Highlights