India's carefully targeted strategy against polio holds lessons for other countries, and for other diseases, argues Priya Shetty.

Encouraging demand for new and increasingly cheap interventions available now can boost health in developing countries, says Charles Kenny.

New clinical trial designs can work for testing both Western and traditional medicines, argue Liang Liu and colleagues.

New funding and concrete results are paving the way for scaling up mhealth technologies — but carefully, writes Priya Shetty.

Countries are using innovative schemes to train and retain health professionals — but they need support, says WHO expert Manuel M. Dayrit.

Health systems in developing nations aren't ready for the diseases that accompany ageing, writes Priya Shetty.

Amanda Glassman director of Global Health Policy argues that a joined up approach is needed if mHealth is to transform health systems.

Healthcare policies and research strategies in developing countries must adapt to the new big killers, says Priya Shetty.

Health scientists in developing countries can use social media to tackle research priorities, argue Alexander E. T. Finlayson and colleagues.

Assessing each country's needs is key to ensuring that medical technologies fulfil their promise, say Sidhartha R. Sinha and Michele Barry.

Public health researchers must be sensitive to resource limitations to ensure medical innovations bring real benefits, says Takunda Matose.

Three key approaches could reduce the number of cholera cases and prevent diseases of poverty in Haiti, say experts in PLoS NTDS.

Vaccination campaigns to eradicate polio must change how they engage with local communities, say Heidi J. Larson and Isaac Ghinai.

Few causes are more worthy of funding than vaccines, says Priya Shetty, and the developing world relies on GAVI getting the billions it needs.

The WHO should make the most of its strengths as a provider of technical and practical information, says public health expert Barry R. Bloom.

Controversy has pressed India into action to tackle antibiotic resistance. Now other countries must do the same, says Priya Shetty.

Health and law enforcement organisations must work together to stop the spread of counterfeit medicines, says Aline Plançon.

The Greater Mekong Subregion must build on current initiatives for a lasting response to fake and substandard drugs, says Charles Delacollette.

Using mobile devices to collect and share health data can make healthcare cheaper, faster and more equitable, argues Jody Ranck.

India's doctors and researchers must convince politicians that health research is vital, says Priya Shetty.