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1. www.merckmanuals.com › home › immune-disordersOverview of the Immune System - Overview of the Immune System ...

   www.merckmanuals.com › home › immune-disorders

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   Lymphocytes are the white blood cells responsible for acquired (specific) immunity, including producing antibodies (by B cells), distinguishing self from nonself (by T cells), and killing infected cells and cancer cells (by killer T cells).

   • Quick Facts

     The fluid is called lymph. Lymph passes through pea-sized...

   • Effects of Aging on The Immune System

     At birth, acquired (specific) immunity is not fully...

   • Acquired Immunity

     The learning process starts when a person’s immune system...

   • Immunotherapy

     Immunotherapy is the use of medications that mimic or modify...

   • Lymphatic System

     Lymphatic vessels drain fluid called lymph from tissues...

   • Hashimoto Thyroiditis

     Hashimoto thyroiditis is the most common type of thyroiditis...

   • Allergic Reaction

     Some allergic reactions, called anaphylactic reactions, are...

   • Bacteria

     Those that need oxygen are called aerobes. Those that do not...

2. www.cdc.gov › vaccines › basicsImmunity Types | Vaccines & Immunizations | CDC

   www.cdc.gov › vaccines › basics

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   Jul 30, 2024 · Natural immunity is acquired from exposure to the disease organism through infection with the actual disease. Vaccine-induced immunity is acquired through the introduction of a killed or weakened form of the disease organism through vaccination.

3. en.wikipedia.org › wiki › Immune_systemImmune system - Wikipedia

   en.wikipedia.org › wiki › Immune_system

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   The immune system is a network of biological systems that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue.

4. www.webmd.com › vaccines › natural-immunity-overviewNatural Immunity: What to Know - WebMD

   www.webmd.com › vaccines › natural-immunity-overview

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   Mar 8, 2024 · Here’s a look at the different types of immunity, including the differences between natural and vaccine-induced immunity, and how they compare against COVID-19. What Is Vaccine-Induced Immunity?

   • Author: Evan Starkman

5. www.ncbi.nlm.nih.gov › pmc › articlesIntroduction to the Immune Response - PMC

   www.ncbi.nlm.nih.gov › pmc › articles

   Oct 10, 2014 · In this chapter we provide an overview of the immune system and its vital role maintaining human health. Immune responses require the coordinated action of leukocytes that travel the body to eliminate threats posed by trauma, infection, toxins, and cancer.

6. www.bmj.com › content › 374Vaccinating people who have had covid-19: why doesn’t natural ...

   www.bmj.com › content › 374

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   Sep 13, 2021 · The US CDC estimates that SARS-CoV-2 has infected more than 100 million Americans, and evidence is mounting that natural immunity is at least as protective as vaccination. Yet public health leadership says everyone needs the vaccine.

   • Author: Jennifer Block

   • Publish Year: 2021

7. www.ncbi.nlm.nih.gov › pmc › articlesSARS-CoV-2—The Role of Natural Immunity: A Narrative Review

   www.ncbi.nlm.nih.gov › pmc › articles

   Aims: This narrative review analyzes the literature regarding these two immunitary processes and more specifically: (a) the duration of natural immunity; (b) cellular immunity; (c) cross-reactivity; (d) the duration of post-vaccination immune protection; (e) the probability of reinfection and its clinical manifestations in the recovered ...

   • DOI: 10.3390/jcm11216272
   • Published: 2022/11

   • Publication: J Clin Med. 2022 Nov; 11(21): 6272.