Dengue fever is now ranked as the most deadly mosquito-borne viral illness in the world.
In the Philippines, more than a hundred thousand contract the disease, resulting in hundreds and hundreds of deaths every year.
The Department of Health says it's easy to fight the disease--if only people remember the ways of keeping their surroundings clean, so that dengue mosquitoes won't have a place to breed.
Thus, the Department distributed posters people could bring home and display in their houses to remind them of the steps to prevent dengue.
And this was no ordinary poster. Printed with Citronella, a substance that repels mosquitoes, this poster actually drives away the dengue-causing insect. Brought home, this poster literally keeps the family safe from dengue.