The deadliest animal on Earth fits on your fingertip. Small enough to overlook, mosquitoes spread diseases that disrupt lives and strain communities across the globe. At UC San Diego, researchers are reimagining what’s possible by engineering genetic tools that disarm these insects from within. Their work is opening the door to a future where people can live safer, healthier lives, free from mosquito-borne disease.
For years, the world has relied on bed nets, insecticides and malaria medications to fight disease. But mosquitoes are becoming resistant, and traditional tools no longer go as far as they once did. That reality is driving scientists in the School of Biological Sciences, like molecular biologist Omar Akbari, to pursue new genetic approaches aimed at the mosquito responsible for most malaria transmission on the continent of Africa.
In the Akbari Lab, a team of researchers has pioneered ways to gently reduce mosquito populations by influencing how future generations are produced. If successful, this strategy could help protect children who are most at risk, reduce pressure on families and health systems and support communities working to break the cycle of malaria. It’s a new way of approaching prevention: stopping the danger before it ever reaches a person.
In 2025, biologists Zhiqian Li and Ethan Bier uncovered something remarkable: a tiny genetic change that stops the malaria parasite from reaching the mosquito’s salivary glands. The mosquito can still bite — it just can’t pass the parasite on.
Together, these advances reflect a broader arc of mosquito research at UC San Diego. Over the years, scientists have developed additional genetic tools aimed at limiting mosquitoes’ ability to spread illnesses such as dengue. Each advance adds depth and possibility to an evolving toolkit shaped by community needs. As these innovations move forward, they bring into view a world where eliminating diseases like malaria is not only possible, but within reach.
