1 In contrast, Preseedâs osmolality matches that of semen and thus does not harm or damage sperm.  Viscosity â The texture of many vaginal lubricants also negatively affect fertility by inhibiting the sperm from traveling up the vagina and through the cervix quickly and efficiently.
The Civil War in Sudan was caused by religious tensions between the North and the South. The two main religions are Sunni Muslim (North) and Christians or other traditional beliefs (south).
At 75 people are killed when rebels of the South Sudan Liberation Army attack the town of Mayom, in Unity State. 2011 November - South Sudan blames Sudan for the aerial bombardment of a refugee camp in Yida, in Unity State; Sudan's army denies being responsible.