Most cases of scarlet fever occur in children. Adults have usually developed immunity to a toxin that the Streptococcus bacteria produce during infection. Explain how an adult develops immunity.

The adult was exposed to the toxin when they were a child, this developed an immune response. This immune response stimulated B lymphocytes to proliferate, these then made memory B lymphocytes. The memory B lymphocytes stay in the body for a very long time and induce a quicker response when the toxin is met later in life - they have developed immunity.

CB
Answered by Charles B. Biology tutor

3110 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What are the key features of eukaryote DNA?


Explain the causes and effects of increasing levels of carbon dioxide in the atmosphere


Explain Mitosis and Meiosis


How do white blood cells protect the body?


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