The Cambodia Oxford Medical Research Unit (COMRU) is based in Siem Reap, northern Cambodia, which remains one of the poorest countries in South East Asia with extremely limited health services. PNEUMONIA IN CAMBODIA Infectious diseases are prevalent in Cambodia, a country that is struggling with poor infrastructure. Streptococcus pneumoniae causes the most severe form of pneumonia and is now targeted by the pneumococcal conjugate vaccine. Dr Paul Turner is studying the effect of this vaccine in field conditions in SE Asia, as well as other direct applications such as the evaluation of a new diagnostic test for Typhoid and interventions to reduce the burden of infections acquired within hospitals. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/