Infected was first popularized with Halo 3 in 2007, and first debuted in an unofficial capacity for CoD in private matches within 2011's Modern Warfare 3.
Some countries use the same currency symbol. TheR$ symbol is used by many countries. To avoid confusion, other letters help distinguish which country's currency is represented, such as C$ for Canadian dollars.
In the character sets given in this information, the dollar symbol ($) is used as a national currency symbol and is assumed to be assigned the EBCDIC code point X'5B'.