Viral Immune Escape. This continual antigenic evolution is the reason that the influenza vaccine is. These mechanisms of immune escape are discussed with specific reference to hepatitis B and C.
If the targets areas are modified specialized antibodies are no longer able to neutralize them. As increasingly more people are jabbed for the Wuhan flu such variants will only continue to emerge and. The phenomenon of viral escape occurs when genetic mutations may alter the different target areas of viral proteins that the immune system has learned to recognize.
This presumably reflects that the original wild-type HIV strain has not had to pay a price to avoid virus neutralisation and as a consequence.
Viral Evolution and Immune Escape of SARS-CoV-2 Strains. Second considering that the new variants have not yet escaped immunity but seem more transmissible it is important to consider how current vaccine development. A chain reaction causing a failure of all three arms of the immune system leads to mutational escape of the virus. On the one hand the host has developed an immune system able to attack viruses and virally infected cells whereas on the other hand viruses have developed an array of immune evasion mechanisms to escape killing by the hosts.
