Yes, Austria has participated in all 21 Winter Olympics (through the 2010 Games in Vancouver).
France, Great Britain, and Switzerland.
Jamaica has participated in every Summer Olympics since 1948 and participated in the Winter Olympics from 1988-2002.
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England along with Switzerland and France are the only three countries to have participated in every summer and winter Olympic games. English athletes have won 780 medals in summer and 22 medals in winter Olympics games.
Australia have participated in every Summer Olympic Games, on two occasions as a joint team with New Zealand (in 1908 and 1912). With regard to the Winter Olympics, they participated in the 1936 contest, and in every contest since 1952.
The Olympic Games are a modern group of internationally-participated competitions, held alternatively every 2 years in either summer or winter. The term also refers to the ancient version, which was more of a festival, that occurred in Greece. == ==
There are no Winter Olympics in 2011. The next Games are in 2014 in Russia. The Winter Olympics are held every 4 years; they last took place in Vancouver, Canada, in 2010.
Jamaica first participated in the Summer Olympics in 1948 and has participated in every Summer Olympics since then.
No one participated in the 2005 Olympics as there were no Olympic Games that year. The Olympics only occur during even-numbered years every 2 years (2004, 2006, 2008, etc.), alternating between the Summer and Winter Games.
1924 Winter Games in Chamonix. Poland has participated in every Winter Olympics that has been held.
China