Admin Table of Contents
What type of immunity requires exposure to an antigen?
Adaptive immunity is an immunity that occurs after exposure to an antigen either from a pathogen or a vaccination. This part of the immune system is activated when the innate immune response is insufficient to control an infection.
What immunity do we develop after exposure to a pathogen?
Active immunity is created by our own immune system when we are exposed to a potential disease-causing agent (i.e., pathogen).
What passive acquired immunity?
Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.
What are the 3 types of immunity?
Humans have three types of immunity — innate, adaptive, and passive:
- Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection.
- Adaptive immunity: Adaptive (or active) immunity develops throughout our lives.
Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen?
Active Immunity – antibodies that develop in a person’s own immune system after the body is exposed to an antigen through a disease or when you get an immunization (i.e. a flu shot). This type of immunity lasts for a long time.
What is Type 1 and Type 2 immunity?
Type 1 immunity is critical for defence against many intracellular pathogens, bacteria, viruses and other microorganisms. By contrast, type 2 immunity promotes immunity against extracellular parasites and helminths, helps to maintain metabolic homeostasis and regulates tissue repair following injury.
What is a natural passive immunity?
Passive immunity can occur naturally, such as when an infant receives a mother’s antibodies through the placenta or breast milk, or artificially, such as when a person receives antibodies in the form of an injection (gamma globulin injection).