The Johns Hopkins Center for Health Security (abbreviated CHS) is an independent, nonprofit organization of the Johns Hopkins Bloomberg School of Public Health. The center works to protect people's health from epidemics and pandemics and ensures that communities are resilient to major challenges. The center is also concerned with biological weapons and the biosecurity implications of emerging biotechnology. The Center for Health Security gives policy recommendations to the United States government, the World Health Organization and the UN Biological Weapons Convention.