PDRI Co-Director, Harsha Thirumurthy, coauthored an article inJAMA Network Open exploring how COVID-19 lockdowns influenced the economic well-being, food security, and sexual behavior of vulnerable populations in low- and middle-income countries. Findings from a survey in Kenya show lockdowns were associated with declines in employment, income, and numbers of sexual partners, suggesting negative economic impacts and temporarily reduced HIV risk in vulnerable populations.