50 athletes (25 men and 25 women), and its athletes broke the nation's record for the number of medals (all awarded in the track and field),
Jamaican Olympic team
79
There are 529 athletes on the 2012 US Olympic team. There are 268 women and 261 men.
A group of Russian athletes and their support team that will travel to the UK to take part in the 2012 Olympic games.
The Jamaican bobsled team has participated in 3 Olympic games so far: 1988 in Calgary, Alberta, Canada 1992 in Albertville, France 1994 in Lillehammer, Norway They have attempted qualification at several Olympic games since, but have not qualified as of 2010.
usa
Of course, Romania participated to the Olympic Games of London in 2012.
The cook Islands are expected to take a team of 5. They have never won an Olympic medal.
530
2
lots
yes