Recommend:

Index > > How Does a Vaccination Work?

How Does a Vaccination Work?

[Summary]How Vaccines Work in the Human Body Animation Vaccinations are injections of antigens into the body. Once the antigens enter the blood, they circulate along with other cells, such B and T cells. B and T cells are white blood cells that help the body

Advertisement

How Vaccines Work in the Human Body Animation

Vaccinations are injections of antigens into the body. Once the antigens enter the blood, they circulate along with other cells, such B and T cells. B and T cells are white blood cells that help the body defend itself against foreign invaders. As the antigens invade the body's tissues, they attract the attention of macrophages. Macrophages are non-specific scavengers, which in this case, engulf the antigens. The macrophages then signal the T cells that antigens are invading. The killer-type of T cells respond by attacking the invading antigen. Finally, the suppressor T cells stop the attack. After a vaccination, the body will have a memory of an encounter with a potentially dangerous invader for a period of time, and hopefully have a better ability to fight it off if ever exposed to it again in greater numbers. A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it, and keep a record of it, so that the immune system can more easily recognize and destroy any of these micro-organisms that it later encounters. Vaccines can be prophylactic (example: to prevent or ameliorate the effects of a future infection by any natural or "wild" pathogen), or therapeutic (e.g., vaccines against cancer are also being investigated). The administration of vaccines is called vaccination. The effectiveness of vaccination has been widely studied and verified; for example, the influenza vaccine, the HPV vaccine, and the chicken pox vaccine. Vaccination is the most effective method of preventing infectious diseases; widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the restriction of diseases such as polio, measles, and tetanus from much of the world. The World Health Organization (WHO) reports that licensed vaccines are currently available to prevent or contribute to the prevention and control of twenty-five infections.

[Editor: Admin]
Related for How Does a Vaccination Work?
  • How Does a Vaccination Work in the BodyMarch 11

    Vaccination Vaccination is the administration of antigenic material (a vaccine) to stimulate an individual's immune system to develop adaptive immunity to a pathogen. Vaccines can prevent or ameliorate morbidity from infection. When a sufficiently la

  • how does flu vaccination workOctober 13

    Side Effects from Vaccines | Immunize for Good Resource Center Side Effects from Vaccines As with any medication, there are possible risks and side effects associated with vaccines. However, the risk of serious allergic reaction is very rare. In comp

  • How Does Passive Immunity WorkDecember 19

    What is immunity and how does it work? The immune system is the body's way of protecting you from infection. Read about how innate and adaptive immunity works, & how this helps vaccines to work How vaccines work Services explained See what the NHS of

  • How Does Energy Medicine WorkMarch 4

    What Is Energy Medicine? What is Energy Medicine? How Does Energy Medicine Work? - Show Me Energy Medicine Energy medicine Alternative medicine History of alternative medicine Rise of modern medicine Pseudoscience Pseudomedicine Antiscience Skeptical

  • How Does Herd Immunity WorkMarch 8

    What is herd immunity? - VaccinesToday Herd immunity is a form of immunity that occurs when the vaccination of a significant portion of a population (or herd) provides a measure of protection for individuals who have not developed immunity. It arises

  • How Does Geothermal Energy Work?October 1

    What is Geothermal Energy What Is Geothermal Energy And How Does Geothermal Energy Work? What is geothermal energy, and how does geothermal energy work? I will answer these two common questions on this page. For links to other geothermal topics, plea

  • How Does Music Therapy Work?October 1

    How Does Music Therapy Work? Description This article is from the Alternative Medicine Therapies guide. How Does Music Therapy Work? Most people tend to experience a visceral reaction to music: a burst of energy upon hearing an upbeat song or a sense

  • How Does a Smartphone Work?October 2

    How Smartphones Work | HowStuffWorks Isn't it great when science fiction becomes science fact? If you're a little older, you probably wanted a communication device just like the one Captain Kirk used in the TV series "Star Trek" when you were gr

  • How Does an iPod Work?October 2

    How iPods Work | HowStuffWorks In 2001, Apple introduced the iPod, an MP3 player with the unheard-of storage capacity of 5 gigabytes. Six iPod generations later, the iPod plays songs, movies, games and photo slideshows, and you can store up to 160 GB

Copyright Asdnyi All rights reserved.