A new weapon in the fight against malaria has risen to heaven.
On Tanzania's Zanzibar archipelago, researchers fly drones armed with Aquatain AMF, a non-toxic colorless solution.
The liquid forms a thin film over the water and prevents mosquito bats and larvae from breathing on the surface.
Simply put, it drowns.
It is a method that fights the transmission of malaria at the source, says dr. Bart Knols.
(SOUNDBITE) (English) MOSQUITO BIOLOGIST, DR. BART KNOLS, SAYS:
"This is where the problem begins, these are the breeding grounds of mosquitoes, and if we control them here, we will see far fewer mosquitoes that will to the homes where people live and these people bite and therefore transmission of malaria. "
The World Health Organization says malaria has killed 435,000 of the 219 million people who were infected in 2017. Sub-Saharan Africa was responsible for more than 90 percent of global deaths.
Scientists hope to extend this technology to the entire continent, as the drones are efficient and cost-effective.
According to the professor, this applies in particular to large irrigated areas of Wolfgang Richard Mukabana.
(SOUNDBITE) UNIVERSITY OF THE NAIROBI MALARIA SCIENTIST, PROFESSOR WOLFGANG RICHARD MUKABANA, SAYS:
"As you can see, paddies are very difficult to walk through the fields and apply the chemicals to them you have something that can simply spray it on the water surface, spread out, do the job and that's it. "Very gas permeable – this means that the mosquitoes can not breathe, but the water is still oxygenated can be.