white blood cells
White Blood Cells.
white blood cells
White blood cells are the backbone of the bodies immunity. White blood cells attach to bad cells or bacteria to help fight of disease.
antibodies
Antibodies attack proteins. If the organism starts to produce antibodies against the essencial proteins in metabolism (as seen in autoimune disease) it can lead to death
To produce antibodies, engulf antigens and produce antitoxin. They do this to protect the body of disease-causing bacteria and viruses.
The best answer would be Antibodies; however, these do not chemically "attack" viruses or bacteria. More accurately, antibodies recognize various germs and allow the various cell types of your immune system to attack and destroy these germs directly. For more info on how this works see: http://en.wikipedia.org/wiki/Adaptive_immune_system
Bacteria may be harmful or helpful to humans. Some bacteria may cause lethal diseases when infecting humans, whereas others may be necessary to help maintain optimal health in humans (such as those in the small intestine which produce Vitamin K). Other bacteria help us with the production of various foods (cheese) and beverages (beer and wine).
some bacteria produce toxins in their metabolism which is harmful for humans. if you have used antibiotics, the normal, good, bacteria that live in your body can be replaced by a pathogen, which will make you sick.
they produce white blood cells (leucocytes) which help protect the body against harmful viruses by producing antibodies, and by a process called "phagocytosis" in which the white blood cell completely engulfs the bacteria, making it harmless.
Vaccinations helps to trigger the immune system in the body to produce antibodies. Once the immune system has been boosted up, it helps to prevent infection in the body thus preventing you from diseases
There is nothing like killed disease. You have the killed microorganisms. These killed microorganisms are injected to the person. That gives rise to formation of the antibodies. These antibodies protect the person from the attack of the live microorganism.
RNA