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Summary
| DescriptionImmune response.jpg |
The time course of an immune response. Immune reactants, such as antibodies and effector T-cells, work to eliminate an infection, and their levels and activity rapidly increase following an encounter with an infectious agent, whether that agent is a pathogen or a vaccine. For several weeks these reactants remain in the serum and lymphatic tissues and provide protective immunity against reinfection by the same agent. During an early reinfection, few outward symptoms of illness are present, but the levels of immune reactants increase and are detectable in the blood and/or lymph. Following clearance of the infection, antibody level and effector T-cell activity gradually declines. Because immunological memory has developed, reinfection at later time points leads to a rapid increase in antibody production and effector T cell activity. These later infections can be mild or even inapparent.
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| Date |
29 January 2007 |
| Source |
User created but based on . |
| Author |
DO11.10 |
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
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File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
Learning is fun and easy with Schools Wikipedia. SOS Children's Villages is famous for the love and shelter it brings to lone children, but we also support families in the areas around our Children's Villages, helping those who need us the most. Try to find out how you can help children in other countries on our web site.
