Vaccines have become an effective way to prevent certain diseases, however for some viruses it is difficult to develop a vaccine. Describe possible difficulties of developing a permanent vaccine for the influenza virus.

The influenza virus has a very high mutation rate. This means that its surface proteins (antigens) will change. Since a vaccine contains a specific antigen, if the virus switches to a different antigen, then the vaccine will no longer be effective. 

Furthermore, antibodies produced by the body would not be able to recognise, and bind with, the changed antigens. 

Many viruses also damage the host's immune system. This means that, even if they received an effective vaccine, their body may not be able to produce sufficient antibodies to overcome the infection.

NL
Answered by Nancy L. Biology tutor

2243 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How does the kidney produce concentrated urine?


What is the difference between Mitosis and Meiosis?


Describe the course taken by a deoxygenated red blood cell returning to the heart from the circulation, naming any vessels or chambers along its course.


Describe and explain the series of events leading to excitatory post synaptic stimulation upon the activation of a pacinian corpuscle.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences