The ambitious effort to piece together America's fragmented health data

Patients in U.S. hospitals suffer high rates of infection due to poor practices such as lack of proper hand-washing and lack of sanitization when inserting central line catheters. The Michigan Health and Hospital Association set out to reduce the rate of infection in their Intensive Care Units by developing a 5-step protocol for nurses and doctors to follow when inserting central lines. What they found was astonishing-- following these simple steps reduced the rate of infection to zero within three months of implementation.

Tuberculosis is still a rampant problem in the developing world. Doctors are looking for even more advanced ways to test for TB beyond the GeneXpert tests.

Slow test results make it difficult to stop the spread of tuberculosis. Using faster diagnostic technology and driving vans to rural areas in Tanzania, GeneXpert is making progress in treating this curable disease.

Although patients go to hospitals to receive medical care, many Americans will acquire infections that did not already have them. The United States as a whole has made modest progress at reducing the rates of hospital-acquired infections. Spearheading the efforts, the Veterans Affairs Medical Centers have devised anti-MRSA strategies to keep patients safe.

For decades, AIDS has taken the lives of millions of people and infected millions more worldwide. The key to reducing the effect of AIDS, and even potentially curing it, involves treating patients as early as possible after being diagnosed with HIV, before the disease damages organs. San Francisco General Hospital developed the RAPID program for this purpose, with the goal of “Getting to Zero” the number of new infections and deaths.

In light of a study published in BMC Medicine, authors Nancy Fullman and Alexandra Wollum take a deeper dive into Nigeria’s gains against polio and what they could mean for the country’s routine vaccine systems.

Three African countries are successfully reducing the transmission of HIV through treatment and education, surpassing many developed countries in reducing cases. Although each is unique, the key lessons include using comprehensive, community-based approaches and strategies that involve collective action.

In the developing world, intestinal worms stunt physical and mental growth, drain energy, and can inhibit school work for children. Deworm the World is a global campaign that lobbied the Delhi government to regularly distribute deworming pills to school children. The benefits decrease student absenteeism and increase cost-saving measures.

A cholera epidemic can kill many people or few people—it all depends on the expertise of the doctors and their access to the right equipment. A program in Dhaka rushes both to countries when an epidemic is just breaking out.

Two columns on how Iran is treating its massive epidemic of injecting drug use by tackling it as a health problem, effectively lowering H.I.V. rates among drug users using an approach to drugs known as harm reduction.