Case Study: Leo Burnett’s fight against dengue with Mawbima mosquito repellant paper

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Dengue2.jpgIt was the dreaded word that was on the lips of every Sri Lankan – Dengue, the deadly mosquito-borne fever had reached epidemic proportions. With over 30,000 people infected in 2013, the disease had claimed too many lives, including the lives of young children.

‘Mawbima’ a mass-market nationwide newspaper, wanted to do its part in the fight against Dengue. But how could it truly make a difference? People read the newspaper in the early morning and evening – the very time the Dengue mosquito strikes. This gave Leo Burnett Sri Lanka an idea: if we mixed citronella essence, a highly effective natural repellent, with ink, we could create a newspaper where every letter of every word stopped mosquitos from biting.


Dengue.jpgThe campaign began with striking print ads where letters in the vernacular blocked the Dengue mosquito. These ran in the newspaper during National Dengue Week and were shared on Facebook. They were also used as posters at prominent bus stops. The posters were coated with Citronella essence so those waiting for a bus wouldn’t get bitten. The paper also ran articles educating people on ways of preventing Dengue and gave mosquito-prevention patches to school kids.


Finally, on the last day of National Dengue Week, which was also World Health Day, Mawbima published the world’s first mosquito-repellant newspaper – a newspaper where all the letters of all the words helped Sri Lankans stop Dengue.


And the results were inspiring. Even with a bigger print run, the paper sold out by 10am – a sales increase of 30%. But what was even more remarkable was that the newspaper’s readership increased by 300,000, allowing us to help and educate more people than we ever expected. Through the power of a simple innovation, we had given Mawbima the last word on Dengue!