Spike protein
sequence
Adeno-
virus
1
Genetic sequence responsible for Covid-19’s distinctive spike protein receptors is identified and spliced into a modified chimpanzee adenovirus
Cell
2
The modified viruses in the vaccine shot can’t replicate in humans to cause further infection, but can infect human cells, inducing an immune response
Corona-
virus
3
The immune system is now primed to attack a Covid-19 infection when it arrives
The Oxford/AstraZeneca vaccine is based on a harmless, modified chimpanzee cold virus
Cell
Spike protein sequence
Adeno-
virus
Corona-
virus
1
Genetic sequence responsible for Covid-19’s distinctive spike protein receptors is identified and spliced into a modified chimpanzee adenovirus
2
The modified viruses in the vaccine shot can’t replicate in humans to cause further infection, but can infect human cells, inducing an immune response
3
The immune system is now primed to attack a Covid-19 infection when it arrives