In Sub-Saharan Africa about 90% of the urban population does not have access to a sewer system.
Most records were either poorly stored, burnt or were missing, but in some countries like Kenya, Senegal, Tanzania, South Africa, Botswana, Namibia and Burkina Faso the surveys dated back 1950s.
In Africa only 7.3% of babies are born via caesarean section, but its a very mixed picture across the continent. Some countries have very high rates such as Egypt (51.8%) and Mauritius (47%), the highest in Africa.
Pregnant women exhale about 21% more carbon dioxide in the later stages of pregnancy than non-pregnant women; they also have warmer bodies – both of which attract mosquitoes
In the past quarter century, the number of childhood deaths globally have been cut by half, representing one of the most dramatic advances in human health in history.