an antigen
Allergies are not considered a communicable disease because they are not spread from person to person like a virus or bacteria. Allergies are caused by the body's immune response to certain substances and can vary greatly from individual to individual.
antibodies
Exposure to a person without contracting the disease typically does not confer immunity. Immunity generally develops through the body’s immune response to an infection or vaccination, where the immune system creates memory cells to recognize and combat the pathogen in the future. However, incidental exposure might lead to some level of immune response in certain cases, but this is not guaranteed and varies greatly depending on the disease and individual factors.
No. AIDS is not so much a disease as it is a condition. AIDS is a diagnosis received by a medical provider when a person is HIV positive and their immune system has reached a certain level of deficiency.
A person can become immune by being vaccinatedwhich helps the body to develop long-term immunity against a disease.
A person can become immune to an infectious disease through vaccination, which triggers the body's immune response to produce antibodies against the pathogen. Additionally, a person can also develop natural immunity by recovering from an infection, where the immune system creates memory cells that can recognize and fight the pathogen if re-exposed.
no
Immune is an adjective, i.e. your immune system. However, it can be used as a noun in the specific case of talking about a person who is not susceptible to a particular disease.
A vaccine.
Vaccines prepare the body to fight off a certain illness or disease. There is a very small amount of the illness in the vaccination, causing the immune system to produce more antibodies to fight off those illnesses. Therefore, you're immune system develops an immunity to the illness or disease. So, if one person develops an immunity to a certain illness or disease, it is highly less likely for them to catch that disease. If they don't get the disease, chances are high that their parents and family won't get it either. Basically, if one child is immunized, he or she reduces the exposure to a certain disease for all around him/her. Hope this helps!
Vaccines have a minuscule amount of the disease, so your immune system can easily destroy it and then retain in the immune systems memory the best way to destroy it. That is how vaccines work. However if you have an immune deficiency disorder, or a weak immune system, the disease inside the vaccine has a tiny chance of surviving and reproducing causing the disease to infect you.
Immunization is the process by which an individual's immune system becomes fortified against an agent. A person is made either immune or resistant to a disease.