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e. The Oxford–AstraZeneca COVID‑19 vaccine, sold under the brand names Covishield [31] and Vaxzevria [1] [32] among others, is a viral vector vaccine for the prevention of COVID-19. It was developed in the United Kingdom by Oxford University and British-Swedish company AstraZeneca, [33] [34] [35] using as a vector the modified chimpanzee ...
D05295. The smallpox vaccine is the first vaccine to have been developed against a contagious disease. In 1796, British physician Edward Jenner demonstrated that an infection with the relatively mild cowpox virus conferred immunity against the deadly smallpox virus. Cowpox served as a natural vaccine until the modern smallpox vaccine emerged in ...
Illustrations showing various icons of some popular social networking services. A social networking service or SNS (sometimes called a social networking site) is a type of online social media platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests ...
List of social networking services. A social networking service is an online platform that people use to build social networks or social relationships with other people who share similar personal or career interests, activities, backgrounds or real-life connections. This is a list of notable active social network services, excluding online ...
Twitch is an American video live-streaming service that focuses on video game live streaming, including broadcasts of esports competitions, in addition to offering music broadcasts, creative content, and "in real life " streams. Twitch is operated by Twitch Interactive, a subsidiary of Amazon. [4] It was introduced in June 2011 as a spin-off of ...
Agnes of Courtenay. Baldwin IV of Jerusalem (Latin: Balduinus, French: Baudouin) (1161–1185), known as the Leper King, was the king of Jerusalem, from 1174 until his death in 1185. He was admired by his contemporaries and later historians for his willpower and dedication to the Latin Kingdom in the face of debilitating leprosy.
TikTok, whose mainland Chinese counterpart is Douyin,[a][3] is a short-form video hosting service owned by Chinese internet company ByteDance. It hosts user-submitted videos, which can range in duration from three seconds to 60 minutes.[4] It can be accessed with a smart phone app. Since its launch, TikTok has become one of the world's most ...
