Marcelo Jacobs-Lorena describes how he engineered a symbiotic bacterium found in mosquito guts to block the transmission of the malaria parasite.

The life beneath our feet

Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us.