2.3.4 In 2011/12 804 natural deaths were recorded. Most resulted from tuberculosis, pneumonia and AIDS. The JICS drew a correlation between overcrowding and the incidence of natural deaths: for every 25% increase in the prison population, the rate of natural death increased by 250%. Both tuberculosis, pneumonia and HIV-infections are manageable conditions, but difficult to manage, and more easily transmitted, in overcrowded conditions. The JICS' 2010/11 concern that many unnatural deaths are misclassified as natural, remained.