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Vaccinations

Vaccinations

Vaccines

Vaccines

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...

Smallpox

Smallpox

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.

Cancer Vaccines

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...

Transmission-based Precautions II: Airborne and Protective Environment

Transmission-based Precautions II: Airborne and Protective Environment

Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...

Active versus Passive Immunity

Active versus Passive Immunity

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
Active immunity refers to the resistance one develops...

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Updated: Jul 15, 2026

Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice

Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice

Published on: February 22, 2019

[Vaccines and exposed occupations].

Dominique Gendrel¹

¹Service de Pédiatrie, Hôpital Cochin-Saint Vincent de Paul, 24, rue du Faubourg Saint-Jacques, 75674 Paris Cedex 14, France. dominique.gendrel@svp.ap-hop-paris.fr

Medecine Sciences : M/S

|April 17, 2007

Summary

Occupational vaccination protects workers and patients from infectious diseases. Expanding immunization recommendations to include teachers, school staff, and medical students is crucial for public health.

Area of Science:

Occupational Health
Vaccinology
Public Health Policy

Context:

Employment law mandates safe and effective vaccines in occupational settings.
Healthcare workers face significant exposure risks to various pathogens.
Immunization serves dual roles: protecting individuals and preventing disease transmission.

Purpose:

To highlight the necessity of occupational vaccination for disease prevention.
To advocate for the extension of immunization recommendations to educational and medical student populations.
To emphasize routine vaccinations against specific infectious diseases.

Summary:

Vaccines are essential for protecting workers, particularly healthcare personnel, from occupational exposures.
Immunization prevents workers from contracting diseases and spreading them to vulnerable populations.

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Current recommendations should be expanded to include teachers, school staff, and medical students, covering diseases like whooping cough, varicella, measles, and hepatitis A.

Impact:

Enhances worker safety and reduces disease transmission in healthcare and educational settings.
Strengthens public health by ensuring broader population immunity.
Improves protection for vulnerable patient groups and students through comprehensive vaccination strategies.