Covishield is an viral vector vaccine developed by the oxford university and AstraZeneca pharmacital company Sweden of Britain. Then, Its production is occur in India, via the Serum Institute of India (SII).
How Covishield Works?
This vaccine use the modified and harmless version of the adenovirus that causes common cold in chimpanzee. This adenovirus contains the genetic code for covid 19 virus, it produce spike protein that is present of corona virus. Then, this proteins are identified, eliminated by the bodys immune cells. This is how, body develops antibody for covid 19.
How effective Covishield is?
Vaccines prevent disease because body has already set of antibodies prepare for the eliminating virus. The effectiveness depends on several things like age, disease and immunity. However, clinical trials results shown 60 to 80% effective in preventing the symptoms and as 100% effective in reducing severe illness and death.
What is Booster Dose of Covishield?
Covishield booster dose is given to patient after 2 dose. After 2 doses, the immunity slowly becomes weak so a booster dose is given to stimulate the immune system to produce antibodies. It helps when bacteria develops resistance, to cope up with such cases, a booster dose helps to fight with it. Clinical trial tells that booster dose has increased antibody level to a greater extent.
What are the side effects of covishield vaccine?
Common side effects can be seen at pain, swelling and tenderness at the injection site. A person may experience fatigue, headache, muscle pain, joint and fever. Some people may feel diffrent intensity of this symptoms. Symptoms may subside after 12 to 24 hours.