Local officials in Florida have approved the release of 750 million mosquitoes that have been genetically modified to reduce local populations. The aim is to reduce the number of mosquitoes that carry diseases like dengue or the Zika virus.
https://www.bbc.com/news/world-us-canada-53856776
origin - https://www.pipiscrew.com/2020/11/florida-mosquitoes-750-million-genetically-modified-insects-to-be-released/ florida-mosquitoes-750-million-genetically-modified-insects-to-be-released