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.What is COVID?
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.
DISCLAIMER
All videos are shared for educational and information purposes only. All videos are hosted and viewable on Youtube servers. Video titles are generated using the original video title; overall content theme including actual dialogue and speech (Transcript); and A.I-based recommendations with a focus on SEO, keyword density, and internal search functions. The video title does not represent the views held by the Youtube video uploader, or any individual, organisation or business.
If you spot any mistake, omission or give feedback, kindly contact us with details
All videos are shared for educational and information purposes only. All videos are hosted and viewable on Youtube servers. Video titles are generated using the original video title; overall content theme including actual dialogue and speech (Transcript); and A.I-based recommendations with a focus on SEO, keyword density, and internal search functions. The video title does not represent the views held by the Youtube video uploader, or any individual, organisation or business.
If you spot any mistake, omission or give feedback, kindly contact us with details
