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Development of Immunocompetence

Development of Immunocompetence

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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Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.

Immunodeficiency Diseases

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency disorders...

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Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...

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.
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Updated: May 30, 2026

Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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[Advances and challenges in immunoprophylaxis].

A A Baranov, V K Tatochenko, L S Namazova-Baranova

Vestnik Rossiiskoi Akademii Meditsinskikh Nauk

|July 27, 2011

Summary

Significant progress in infection control has been achieved through widespread vaccination, reducing disease incidence. New vaccines are needed to further protect children and prevent diseases like cervical cancer and viral diarrheas.

Area of Science:

Public Health
Infectious Disease Management
Vaccinology

Context:

Early 21st-century advancements enabled poliomyelitis eradication and near-elimination of measles through high vaccination rates (96-99%).
Expanded immunization schedules now include hepatitis B, rubella, influenza, and Haemophilus influenzae type b.
Substantial reduction in vaccine-preventable disease morbidity in Russia compared to the 1990s.

Purpose:

To advocate for the rapid adoption of novel and combined vaccines to minimize inoculation burden on children.
To provide a rationale for implementing vaccines against pneumococcal and meningococcal infections, hepatitis A, and varicella.
To support increased vaccination coverage for pertussis, human papillomavirus (HPV), and rotavirus.

Summary:

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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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Opsono-Adherence Assay to Evaluate Functional Antibodies in Vaccine Development Against Bacillus anthracis and Other Encapsulated Pathogens

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Sublingual Immunotherapy as an Alternative to Induce Protection Against Acute Respiratory Infections

Sublingual Immunotherapy as an Alternative to Induce Protection Against Acute Respiratory Infections

Published on: August 30, 2014

Recent progress in managing infectious diseases has led to significant public health improvements, including the near-elimination of poliomyelitis and measles.

The immunization calendar has been updated, and contraindications reduced, but new vaccines are essential for further control.

The study proposes the use of new vaccines for pneumococcal, meningococcal, hepatitis A, varicella, pertussis, HPV, and rotavirus infections.

Impact:

Reduced morbidity and mortality from vaccine-preventable diseases.
Enhanced child and public health through expanded immunization programs.
Potential for cervical cancer prevention via HPV vaccination and control of viral diarrheas with rotavirus vaccines.