1.   For men with known contamination, the risk increases five fold.

2.   American Express Co. has its eyes set on Brazil, where spending on credit, charge and debit cards has increased nine fold in the past three years.

3.   But that was mainly because the time spent in production remained essentially unchanged while the speed of these devices increased several fold.

4.   Throughout the region of southern Africa, the price of maize has increased several fold in the past few months, the FAO said.