Immunity system
The term immunity has traditional refer to as the Resistance exhibit by the host towards injury. Causes by pathogens and their products.
Immunity in fact '''freedom''' or exempt.
The concept of immunity is believed to be start by "Edward Jenner" in England
He develop Cowpox vaccine for the protection against small pox (virus).
Immunology
"The Branch of science which deals with the study of immunity system,immune response to foreign substance and their role in resistant infection bye pathogens."
Antigen
"Any foreign substance invading body and capable of stimulating an immune response is called antigen."
Antibodies
"The protective chemicals produced by immune cells in response to antigens are called antibodies."
Type of immunity system
(1):- Innate immunity or Inborn immunity
(2):- acquired immunity
Inborn Immunity
"It is a natural defense system of the body.
Ex.colastum.
Acquired immunity
"The resistance that an individual acquires during life is know as acquired immunity. it is also know as adaptive immunity.
Subtype of acquired immunity
(A):- Active immunity
(B):- Passive immunity
Active immunity
"It is the resistance develop by the individuals as the result of an antigenic stimulate.it's also know as "Adaptive immunity" .
In active immunity their is two type of immune:-
(1) "Natural acquired immunity active immunity".
(2) "Artificial acquired active immunity".
Passive immunity
" passive immunity is acquired when the readymade antibodies are received by the body cells".
In Passive immunity their is two type of immune:-
(1) "Natural acquired immunity active immunity".
(2) "Artificial acquired active immunity".
Cells of immune system:
There are two main types of cells involved in the working of immune system.they are (a) Lymphocytes
(b) Anitgen presenting cells.
Vaccination
 |
| Vaccination |
" Administration of vaccine to protect against a particular pathogens is called vaccination''
The body's immune system help to protect against pathogens that causes infection in mostly like to causes problems are one of the body doesn't recognize .
vaccination is the way to "teach" the immune system how to recognise and eliminate pathogenic organism. that way body is always prepare if you are very exposed.
vaccination is imported from primary prevent that can protect people from getting sick vaccination allow us to control disease like Measles,polio, tetanus and whooping cough that one treatment many lives it is important that as bmany people as possible to get vaccination. "Vaccination doesn't just protect individual when enough people are vaccinated its help to protect the society "
How dose vaccination work
It stimulates the body to make antibody against antigen of pathogens it's also primary immune cells to remember the type of the antigen this allowed to faster response the pathogen in future.
vaccines work by exposing to safe version of pathogen.
vaccines may be in form of of
(a) A protein of sugar from pathogens.
(b) A dead or inactivated from a pathogens.
(c) A toxoid containing toxin produced by pathogens.
(d) A weakend(attenuated) pathogens.
when the body response to the vaccines, its builds an adaptive immune response.
This helps to equip the body to fight off an actual infection.
Vaccination are safe:
Vaccines are considered to be safe.
they are rigorusly tested and go through many round of studies ,examination and research before they are used for general public.
extensive Research and evidence shows that vaccine are safe their side effect are rare and typically mild.
Comments
Post a Comment