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One in three...

2.5 billion people in the world do not have access to adequate sanitation, one in three of the world's population.
(WHO/UNICEF Joint Monitoring Programme (JMP) Report 2014 update

748 million people in the world do not have access to safe water. This is roughly one in ten of the world's population.
(WHO/UNICEF Joint Monitoring Programme (JMP) Report 2014)

Around 500,000 children die every year from diarrhoea caused by unsafe water and poor sanitation - that's over 1,400 children a day.
((Inter-agency Group for Child Mortality Estimate (IGME) 2014, led by UNICEF and WHO).)

Diarrhoea is the third biggest killer of children under five years old in Sub-Saharan Africa.
(Child Health Epidemiology Reference Group (CHERG) 2012)

Diarrhoea is the second biggest killer of children under five years old worldwide.
(Child Health Epidemiology Reference Group (CHERG) 2012)

Every hour we reached 190 people with safe water last year.
(Average figure, WaterAid 2013)

For every $1 invested in water and sanitation, an average of at least $4 is returned in increased productivity.
(Hutton, Global costs and benefits of drinking-water supply and sanitation interventions to reach the MDG target and universal coverage, WHO, Geneva, 2012: page 4)

Half the hospital beds in developing countries are filled with people suffering from diseases caused by poor water, sanitation and hygiene.
(UNDP Human Development Report, 2006 http://hdr.undp.org/en/media/HDR06-complete.pdf  page 45)

Hygienic practices such as washing hands with soap can reduce the risk of diarrhoea by 50%
(Curtis and Cairncross, 2003; Luby, et al. 2005)