The corona virus or Covid-19 vaccine developed by AstraZeneca Plc and the University of Oxford produces a strong immune response in older adults. This offers hope of protecting some of those who are most vulnerable to the disease.
Researchers said data published in the medical journal The Lancet on Thursday showed that those over the age of 70, who are at higher risk of serious illness and death from Covid-19, can build strong immunity.
How does the AstraZeneca / Oxford vaccine work?
A vaccine called ChAdOx1 nCoV-19 uses a harmless, attenuated version of the common virus that causes colds in chimpanzees. Researchers have used this technology to produce vaccines against a number of pathogens including flu, Zika, and Middle East respiratory syndrome (Mers).
According to the PA Media report, the virus is genetically modified so that it is impossible to develop in humans. Scientists have transferred the genetic instructions for the coronavirus specific “spike protein,” needed to attack cells into the vaccine.
When the vaccine enters cells in the body, it uses this genetic code to produce the surface spike protein of the coronavirus. This induces an immune response, prioritizing the immune system to attack the coronavirus if it infects the body.