81.   He developed a blood test to detect the defective gene that causes Tay-Sachs, a fatal neurological disorder that affects mainly children of Eastern European Jewish background.

82.   It most commonly affects children.

83.   It particularly affects young children.

84.   It usually affects children and can be spread through direct contact with body fluids.

85.   McDonnell could not provide an estimate of how many children were affected.

86.   Malaria is the third most fatal disease in Mozambique affecting mainly children and pregnant mothers.

87.   Only a minority of young Palestinians take part in clashes with Israeli forces, but all children have been affected by the intifada, or uprising, Poupard said.

88.   Polio is a highly infectious disease that mainly affects children under the age of five.

89.   The breakdown was its first comprehensive look at the way AIDS and HIV have affected children.

90.   The condition affects different children in different ways.