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Our toxicologists design, implement, conduct and manage a wide range of laboratory and field-based bioassays, investigations and other tests to fill key data gaps and increase our understanding of the adverse effects of chemicals, mixtures, and other stressors on numerous organisms, including bacteria, algae, invertebrates, fish, reptiles, birds, and mammals.

CDC’s real-time surveillance of COVID-19 cases and analyses of surveillance data inform public health policies, communication about protective behaviors, and guidance to public health and healthcare providers, communities, businesses, and schools.

Where students go to college is key to their educational attainment and later economic success. However, 41 percent of students nationally and about half of those from lower socioeconomic backgrounds undermatch—meaning they don’t attend college or they…

Under federal law enacted in the 1990s, a limited number of public housing agencies (PHAs) have received demonstration authority under which they may experiment with alternatives to the standard rules under which the Housing Choice Voucher and public…

The ECHO project is advancing HIV epidemic control in Mozambique through innovative approaches, local empowerment, and sustainable strategies for testing, treatment, and viral load suppression

USAID’s Abt-led SHOPS Plus helped link Senegal’s public and private sectors by linking private healthcare providers to community-based insurance plans.

Abt’s experts partner with federal agencies, states, and other organizations to advance evidence-based primary care in the U.S.