Denmark, officially the Kingdom of Denmark, is a Nordic country in Northern Europe. The capital is Copenhagen. Denmark proper, consists of a peninsula, Jutland, and an archipelago of 443 islands.
The Kingdom of Denmark comprises Denmark proper and the two autonomous territories in the North Atlantic Ocean: the Faroe Islands and Greenland. Home rule was established in the Faroe Islands in 1948; in Greenland home rule was established in 1979 and further autonomy in 2009.
Denmark has highly developed mixed economy. Denmark became a member of the European Economic Community (now the EU) in 1973, but negotiated certain opt-outs; it retains its own currency, the krone. It is among the founding members of NATO, the Nordic Council, the OECD, OSCE, and the United Nations; it is also part of the Schengen Area. Denmark has close linguistic ties to its Scandinavian neighbours.
France is a republic and the largest Western European nation. Through expansion and colonisation in the 17th and 18th centuries France became a great power and still retains territories around the world. It has a seat on the UN security council and is the world’s fourth most wealthy country with a high standard of living and strong cultural identity.
Sweden is a Scandinavian nation with thousands of coastal islands and inland lakes, along with vast boreal forests and glaciated mountains. Its principal cities, eastern capital Stockholm and southwestern Gothenburg and Malmö, are all coastal. Stockholm is built on 14 islands. It has more than 50 bridges, as well as the medieval old town, Gamla Stan, royal palaces and museums such as open-air Skansen.
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.