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https://news.sky.com/story/coronavirus-disappearing-so-fast-oxford-vaccine-has-only-50-chance-of-working-11993739Published by: SKY NEWS on 25 May 2020
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What is Coronavirus?Coronaviruses are a group of viruses that cause diseases in mammals and birds. In humans, coronaviruses cause respiratory tract infections that are typically mild, such as the common cold, though rarer forms such as SARS, MERS, and COVID-19 can be lethal. Symptoms vary in other species: in chickens, they cause an upper respiratory tract disease, while in cows and pigs they cause diarrhea. There are yet to be vaccines or antiviral drugs to prevent or treat human coronavirus infections.
Who are Sky News?Sky News is a British free-to-air television news channel and organisation. Sky News is distributed via a radio news service, and through online channels. It is owned by Sky Group, a division of Comcast. John Ryley is the head of Sky News, a role he has held since June 2006. Sky News is currently Royal Television Society News Channel of the Year, the 12th time it has held the award. It is a provider of live streaming world news which can be viewed via its website, YouTube, and various mobile devices and digital media players.
What is Vaccine?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. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it, and to further recognize and destroy any of the microorganisms associated with that agent that it may encounter in the future. The administration of vaccines is called vaccination. Vaccination is the most effective method of preventing infectious diseases; widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the restriction of diseases such as polio, measles, and tetanus from much of the world.
