British Prime Minister Gordon Brown and German Chancellor Angela Merkel on Wednesday set out details of a new global initiative aimed at boosting healthcare for the world's poorest nations.
Ahead of talks at Brown's Downing Street office in London, the pair said "urgent action" was needed to tackle diseases like HIV/AIDS and cut child and maternal mortality rates in developing countries.
Tackling disease and reducing child and maternal mortality rates are among the eight UN Millennium Development Goals (MDGs) agreed by the international community in 2000 which aim to reduce world poverty by 2015.
But a mid-term report on the goals has assessed that progress is "off-track" with those on health the least likely to be met.
An international health partnership to ensure that overseas aid is better targeted at the main health needs of impoverished countries will be officially launched on September 5, they said in a joint statement.
The partnership will involve Britain, Germany, Canada and Norway, as well as the World Bank and the World Health Organisation and aims to improve access to health services in poorer nations as well improve their effectiveness.
Brown and Merkel said that although overseas aid had increased in recent years, funding had targeted specific areas only and not built strong, sustainable healthcare systems vital for combating ill health.
International assistance was "over-complex" and "fragmented", they added, while a lack of health workers, clinics, supplies of essential medicines and financing were hindering more rapid progress in improving the situation.