A vaccination introduces killed/weakened pathogens or an antigen to the body. An antigen is anything that triggers an immune system response (generally a surface protein on a pathogen). In order to understand why this helps it is crucial to understand how the immune system operates:
The body has two types of immunity "Cell-mediated" and "Humoral Immunity." Cell-mediated immunity is essentially a mob of Killer T Cells and a few others going around attacking pathogens and infected body cells. But the Humoral Response is the one we are concerned with for your question...
Humoral Immunity is mediated by the secretion of antibodies from B lymphocytes. There are two main types of B lymphocytes, Memory Cells and and Plasma B Cells. Memory cells are randomly generated and stored mainly in lymph nodes. A human body which has never been exposed to a disease will have ONE of each Memory Cell 'hidden' in a lymph node. Each Memory Cell applies to ONE pathogen. The Memory Cell essentially tells other cells to do their jobs to fight an infection, not much will get done without it. Once a Memory Cell has been activated, it will continue to proliferate forever, even after the pathogen it fights is gone.
In a very introductory level synopsis, if a pathogen breaks through the primary and secondary defenses of the body and it comes time for the real beats (the humoral response) to activate a very inefficient and time consuming process occurs in which an antigen presenting cell engulfs the pathogen and then seeks the specific Memory Cell in the lymphatic system. Now bear in mind (if the body ha snot yet been exposed to the disease) the cell is searching for ONE Memory Cell among 10 trillion body cells! With some sicknesses, it takes too long to find the Memory Cell and the patient could be terminal before it is found and the Humoral Response triggered.
Now the old adage is "prevention is worth a pund of cure," and if it worked for my 7th grade English teacher it works for microbiology as well. The ultimate goal of a vaccination is to expose the body to severely weakened pathogens or purified anitgens, neither of which are likely to cause an adverse reaction. By doing this, a humoral response is triggered and the body seeks the proper Memory Cell, this cell then proliferates throughout the course of the patient's life and will be found much more quickly should it be needed to fight a real infection.
Vaccines contain antigens, which are harmless parts of pathogens that stimulate the immune system to produce an immune response. When a vaccine is administered, white blood cells recognize these antigens as foreign invaders and mount an immune response by producing antibodies and activating other immune cells to destroy the pathogen.
when a vaccine is introduced into the body, your immune system responds as if
the vaccine is an intruder.it sends WBC's in the form of Macrophages & Phagocytes to attack & destroy the invader. the WBC's ingest the foreign invaders, and they release the remains of the invader(think of a bowel movement in Humans). those remains are called Antibodies. the antibodies will protect you if you are ever exposed to that particular invader again.
Menactra is a vaccine that helps protect against meningococcal disease, which is a serious bacterial infection that can cause meningitis and blood infections. The vaccine is typically recommended for adolescents and young adults as it helps provide immunity against certain strains of the bacteria.
Yes, blood cells from a person with type B blood will agglutinate when mixed with type A antiserum. This is because the type A antiserum contains antibodies that recognize the A antigen present on type A blood cells and can cause them to clump together.
Cones that do not respond to light cause vision problems, particularly in the daytime. They are responsible for color vision and detail, so dysfunction can lead to color blindness and reduced visual acuity.
iVDPV stands for immunodeficiency-associated vaccine-derived poliovirus. It refers to a rare strain of the poliovirus that can emerge in individuals with certain types of immune deficiencies, such as those with primary immunodeficiency disorders. iVDPV can potentially cause paralysis similar to wild poliovirus.
will low blood sodium cause spasms in the hands
There are several things that can cause blood in saliva. Some common causes that cause blood to be present in saliva include a decayed tooth, or a throat infection.
At present the exact cause of arthritis is unknown however the cause for many forms of arthritis is carried in the immune system by the blood.
No. This is not possible. The Gardasil vaccine contains recombinant proteins from HPV to provoke an immune response. There are no live viruses, attenuated viruses or even dead viruses in the vaccine. The viral DNA is not present in any form.
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No.
Chickenpox vaccine does not cause shingles directly, but the virus, like naturally-caught virus, stays in the spinal cord and may be reactivated later to cause herpes. The chances are lower with chickenpox vaccine than with chickenpox disease.
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If you get chickenpox after having the vaccine, it is likely to be very mild case and unlikely to cause serious complications.
No. Hepatitis B and HIV are two different viruses. One does not cause the other.
because there are different number of species with different effects that they can cause, therefore it is harder to develop a vaccine for it
There is no evidence that HPV vaccine causes cervical cancer. Because the vaccine doesn't contain live virus, it can't cause HPV disease.
It can cause swelling or hands, feet and throat. If swelling by low blood pressure occurs, it will take effect on the throat and there is a high risk present of suffocating. Good luck.