We now have an ideal opportunity to invest in cost-effective prevention and intervention programmes with proven track records.

ECONOMIST: America behind bars

Through the President's Emergency Plan for AIDS Relief (PEPFAR), we are on track to meet the HIV prevention and treatment targets I set last year.

WHITEHOUSE: Presidential Proclamation -- World AIDS Day, 2012 | The White House

Today, I am pleased my Administration will make public new data that demonstrates we are on track to meet the ambitious treatment and prevention targets I announced on World AIDS Day a year ago.

WHITEHOUSE: The White House

Last month, 1, 600 employees at four U.S. workplaces, including the City of Houston, strapped on armbands that track exercise habits, calories burned and vital signs, part of a diabetes-prevention program run by insurer Cigna.

WSJ: How the Insurer Knows You Just Stocked Up on Ice Cream and Beer

"Keeping track of cancer trends is vital for research on the causes of cancer and to help focus prevention strategies and treatment resources, " she said.

BBC: NEWS | UK | Northern Ireland | Variance in cancer survival rates

The Centers for Disease Control and Prevention will lead the multi-million dollar project to build a computerised network that will enable experts to track medical data on residents of eight major US cities.

BBC: Early warning system for bio-terror