What is herd immunity and how does it work?
Answered by verified global health professionalsDr RobinGeneral Physician · 9 years of exp
Herd immunity is a concept in epidemiology where a significant portion of a population becomes immune to a disease, protecting those who are not immune, such as people who are too young to be vaccinated or have a compromised immune system. This occurs when a sufficient percentage of the population has been vaccinated, thereby reducing the transmission of the disease and creating a barrier that prevents the spread of the disease. When a large prop... Read more
Herd immunity - Wikipedia
Herd immunity (also called herd effect, community immunity, population immunity, or mass immunity) is a form of indirect protection that applies only to contagious diseases.
What Is Herd Immunity? | Infectious Diseases - JAMA …
Oct 19, 2020 · Herd immunity occurs when a significant portion of a population becomes immune to an infectious disease and the risk of spread from person to person decreases; those who are not immune are indirectly protected …
Interesting reads - Herd Immunity
Powered by MSNHerd immunity and COVID-19: What you need to know
Jun 1, 2024 · Herd immunity is the name for a point in time when it's hard for a disease to spread through a group of people. The idea of herd immunity works for some diseases, such as …
Herd immunity (Herd protection) | Vaccine Knowledge Project
Sep 7, 2023 · ‘Herd immunity’, 'community immunity' or 'herd protection' gives protection to vulnerable people such as newborn babies, elderly people and those who are too sick to be …
What Is Herd Immunity? - Verywell Health
Apr 24, 2020 · Herd immunity—or community immunity—is based on the idea that as more people develop immunity to a disease, they help prevent the spread to others who are more …
Herd immunity | Vaccination, Contagion & Immunity | Britannica
Jan 19, 2025 · Herd immunity, state in which a large proportion of a population is able to repel an infectious disease, thereby limiting the extent to which the disease can spread from person to …
Core Concept: Herd immunity is an important—and often …
Since the earliest months of the COVID-19 pandemic, “herd immunity” has become shorthand for the day when enough people are immune to the virus that social distancing can end and …
The Relationship Between Vaccines and Herd Immunity
Apr 9, 2021 · Herd immunity is reliant on immunity from a disease. Immunity can be achieved in one of two ways: prior infection or vaccination. In many cases, relying on prior infection is an unrealistic—and even dangerous—way to reach …
Herd immunity: What it is and Why it's Important
May 5, 2021 · Measles, chickenpox and polio all have one thing that can stop them in their tracks—herd immunity. That’s when a large portion of a population becomes immune to a specific disease through vaccination or natural …
