Which teams are already in Brazil 2014?

image source: fifa.com

World Cup Qualification Policy:

The allocation of places for the 2014 Fifa World Cup Brazil was decided on March 3rd 2011, with the distribution of the 31 places (Brazil automatically qualifies for the tournament as host) which wasn't changed from that for the 2010 World Cup.
The tournament will be held between June 12 and July 13.

The distribution by confederation for the 2014 World Cup will be:

• AFC: (43 teams competing for 4 or 5 berths, playoff to determine exact number) 4 certain berths with 5th to play CONMEBOL's 5th place team in a home-and-away series to determine who will qualify.
• CAF: (52 teams competing for 5 berths)
• CONCACAF: (35 teams competing for 3 or 4 berths, with playoff to determine exact number) 3 certain berths with 4th to play OFC's winner in a home and away series to determine who will qualify for the finals.
• CONMEBOL: (9 teams competing for 4 or 5 berths, playoff to determine exact number) 4 certain berths with 5th to play AFC's 5th place team in a home-and-away series to determine who will qualify. In addition, Brazil automatically qualifies for the finals as host.
• OFC: (11 teams competing for 0 or 1 berth, playoff to determine exact number) Winner plays CONCACAF's 4th place team in a home and away series.
• UEFA: (53 teams competing for 13 berths.

Qualified Teams as of June 18:

1. Brazil: hosts
2. Japan: AFC Fourth Round Group B Winners
3. Australia: AFC Fourth Round Group B Runners-up
4. Iran: AFC Fourth Round Group A Winners
5. South Korea: AFC Fourth Round Group A Runners-up

Source: http://en.wikipedia.org/wiki/2014_FIFA_World_Cup_qualification