The National Broadcasting Company is an American English-language commercial broadcast television and radio network which is the flagship property of and owned by Comcast. The network is headquartered at 30 Rockefeller Plaza in New York City, with additional major offices near Los Angeles, and Chicago.
The Omicron variant of Covid-19 (also known as B.1.1.529) has been declared a Variant of Concern.
The Technical Advisory Group on SARS-CoV-2 Virus Evolution (TAG-VE) is an independent group of experts that periodically monitors and evaluates the evolution of SARS-CoV-2 and assesses if specific mutations and combinations of mutations alter the behaviour of the virus. The TAG-VE was convened on 26 November 2021 to assess the SARS-CoV-2 variant: B.1.1.529 – which is known as Omicron – the group declared the variant a Variant of Concern.
Russia, or the Russian Federation, is a transcontinental country located in Eastern Europe and Northern Asia. It extends from the Baltic Sea in the west to the Pacific Ocean in the east, and from the Arctic Ocean in the north to the Black Sea and the Caspian Sea in the south.
Russia spans more than one-eighth of the Earth’s inhabited land area, stretching eleven time zones, and bordering 16 sovereign nations. Moscow is the country’s capital.
The Soviet Union was dissolved in 1991 and since 1993 Russia been governed as a federal semi-presidential republic. Russia is a major great power, with the world’s second-most powerful military, and the fourth-highest military expenditure. As a recognised nuclear-weapon state, the country possesses the world’s largest stockpile of nuclear weapons.
Ukraine is a large country in Eastern Europe known for its Orthodox churches, Black Sea coastline and forested mountains. Its capital, Kiev, features the gold-domed St. Sophia’s Cathedral, with 11th-century mosaics and frescoes. Overlooking the Dnieper River is the Kiev Pechersk Lavra monastery complex, a Christian pilgrimage site housing Scythian tomb relics and catacombs containing mummified Orthodox monks.
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.