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Related Concept Videos

Development of Immunocompetence01:22

Development of Immunocompetence

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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
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Functions of the Lymphatic and Immune System01:28

Functions of the Lymphatic and Immune System

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The lymphatic system plays a crucial role in bolstering our immune system. It consists of a network of lymphoid organs, lymph, and lymphatic vessels that provide structural and functional support in safeguarding the body against pathogens such as viruses and bacteria.
The primary lymphoid organs, including the bone marrow and the thymus, serve as the maturation sites for lymphocytes. Secondary lymphoid organs, like the mucosa-associated lymphoid tissue, activate these lymphocytes and serve as...
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Introduction to Lymphatic and Immune System01:23

Introduction to Lymphatic and Immune System

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Immunity is a crucial biological concept about our body's inherent capacity to prevent infections and diseases. A complex network of cells and tissues collectively known as the immune system facilitates this natural defense mechanism. The immune system plays an integral role in maintaining our health and well-being, shielding us from potential health threats.
The immune responses can be categorized into two types: innate and adaptive. Innate immunity comprises nonspecific defenses we are born...
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Immunological Memory01:23

Immunological Memory

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
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Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

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The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
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Active versus Passive Immunity01:31

Active versus Passive Immunity

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Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
Active Immunity
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Related Experiment Video

Updated: Feb 18, 2026

Isolation of Leukocytes from Human Breast Milk for Use in an Antibody-dependent Cellular Phagocytosis Assay of HIV Targets
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Breastmilk and Immune Function.

Wendy H Oddy1

  • 1Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia, wendy.oddy@utas.edu.au.

Annals of Nutrition & Metabolism
|February 16, 2026
PubMed
Summary

Breastfeeding strengthens infant immunity by enhancing gut barrier function and providing protective immune factors. Promoting breastfeeding is crucial for optimal infant health and development.

Area of Science:

  • Immunology
  • Neonatal Development
  • Human Lactation

Background:

  • Breast milk is vital for neonatal immune system development.
  • It contains bioactive factors like extracellular vesicles, microRNA, and cytokines.
  • These components enhance innate and adaptive immunity, protect against pathogens, and modulate inflammation.

Purpose of the Study:

  • To summarize the immunological benefits of breast milk for infants.
  • To highlight the mechanisms by which breast milk supports infant immune development.

Main Methods:

  • Literature review of studies on human milk's immunological impact.
  • Analysis of bioactive components in breast milk and their functions.
  • Examination of the effects of breastfeeding on infant health outcomes.
Keywords:
BreastmilkImmunityInfant nutrition

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Intranasal Immunization and Milk Collection in Studies of Maternal Immunization in New Zealand White Rabbits Oryctolagus cuniculus
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Individualized Reconstitution of Human Milk Microbiota: A Feasible Approach in Real-World Settings
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Main Results:

  • Human milk accelerates gut barrier maturation in neonates.
  • Immune factors in breast milk protect infants from pathogenic damage.
  • Breast milk components actively modulate inflammatory responses, reducing disease risk.

Conclusions:

  • Breast milk significantly impacts infant immunological development.
  • Breastfeeding should be promoted to support infant health.
  • Exclusive breastfeeding for six months, followed by continued breastfeeding up to two years, is recommended.