The impact of Facebook's vaccine misinformation policy on user endorsements of vaccine content: An interrupted time series analysis.

Objectives: To evaluate the impact of Facebook's vaccine misinformation policy in March 2019 on user endorsements of vaccine content on its platform.

Methods: We identified 172 anti- and pro-vaccine Facebook Pages and collected posts from these Pages six months before and after the policy. Using interrupted time series regression models, we evaluated the policy impact on user endorsements (i.

Systematic Review of Peer-Reviewed Literature on Global Condom Promotion Programs.

: Globally, 1.7 million people were newly infected with HIV in 2018. Condoms are inexpensive, cost-effective, reduce HIV/STI incidence, morbidity, mortality, and unintended pregnancies, and result in health care cost savings.