Flu Vaccine Glossary of Terms

The following are health and medical definitions of terms that appear in the Flu Vaccine article.

Allergy: A misguided reaction to foreign substances by the immune system, the body system ...

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Antibody: An immunoglobulin, a specialized immune protein, produced because of the introdu...

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Antigen: A substance that the immune system perceives as being foreign or dangerous. The b...

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Antigenic drift: A mechanism for variation by viruses that involves the accumulation of mu...

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Antigenic shift: A sudden shift in the antigenicity of a virus resulting from the recombin...

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Arginine: An essential amino acid and a key component of protein. Lack of arginine in the ...

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Aspirin: Once the Bayer trademark for acetylsalicylic acid, now the common name for this a...

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Assay: An assay is an analysis done to determine:

  1. The presence of a substance an...

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Asthma: A common lung disorder in which inflammation causes the bronchi to swell and narro...

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Attenuated: Weakened, diluted, thinned, reduced, weakened, diminished.

Autism: A spectrum of neuropsychiatric disorders characterized by deficits in social inter...

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Bacterium: The singular of bacteria.

Bird flu: See: Avian influenza.

CDC: The Centers for Disease Control and Prevention, the US agency charged with tracking a...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Congestion: An abnormal or excessive accumulation of a body fluid. The term is used broadl...

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Deltoid: The muscle, roughly triangular in shape, that stretches from the collarbone (clav...

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Diabetes: Usually refers to diabetes mellitus or, less often, to diabetes insipidus. Diabe...

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DNA: Deoxyribonucleic acid. One of two types of molecules that encode genetic information...

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Evolution: The continuing process of change.

Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency ...

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FDA: Food and Drug Administration.

Fever: Although a fever technically is any body temperature above the normal of 98.6 F (37...

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Flu: Flu is a colloquialism for influenza. The flu is an acute respiratory illness caused ...

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Flu vaccine: In 2010, the United States Advisory Committee on Immunization Practices (ACIP...

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Genes: The basic biological units of heredity. Segments of deoxyribonucleic acid (DNA) nee...

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Genetic: Having to do with genes and genetic
information.

Genome: All the genetic information possessed by any organism (for example, the human geno...

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Headache: A pain in the head with the pain being above the eyes or the ears, behind the he...

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Heart: The muscle that pumps blood received from veins into arteries throughout the body. ...

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HIV: Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodefi...

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Immune: Protected against infection, usually by the presence of antibodies.

Immune response: Any reaction by the immune system. For example, poison ivy can cause an i...

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Immune system: A complex system that is responsible for distinguishing a person from every...

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Indicate: In medicine, to make a treatment or procedure advisable because of a particular ...

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Infection: The invasion and multiplication of microorganisms such as bacteria, viruses, an...

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Influenza: Influenza is an acute respiratory illness caused by influenza A or B viruses Mo...

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Intradermal: In the skin. For example, an intradermal injection is given into the skin. Ab...

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Kidney: One of a pair of organs located in the right and left side of the abdomen. The kid...

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Lungs: The lungs are a pair of breathing organs located with the chest which remove carbon...

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Muscle: Muscle is the tissue of the body which primarily functions as a source of power. T...

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Nasal: Having to do with the nose.

Nasal-spray flu vaccine: See: Nasal flu vaccine.

Neurological: Having to do with the nerves or the nervous system as, for example, a neurol...

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Nursing: 1) Profession concerned with the provision of services essential to the maintena...

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Pandemic: An epidemic (a sudden outbreak) that becomes very widespread and affects a whole...

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Pediatric: Pertaining to children.

Pharmacy: A location where prescription medications are sold. A pharmacy is constantly sup...

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Pneumonia: Inflammation of one or both lungs, with dense areas of lung inflammation. Pneum...

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Polio: Abbreviation for poliomyelitis, an acute and sometimes devastating disease caused ...

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Pregnant: The state of carrying a developing fetus within the body.

Protein: One of the three nutrients used as energy sources (calories) by the body. Protein...

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Proteins: Large molecules composed of one or more chains of amino acids in a specific orde...

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Recombinant: A person with a new combination of genes, a combination not present in either...

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Recurrent: Appearing or occurring again. For example, a recurrent fever is a fever that ha...

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RNA: Ribonucleic acid.

Sore: 1. (adjective) A popular term for painful, such as a sore throat. 2. (...

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Sore throat: Pain in the throat. Sore throat may be caused by many different causes, inclu...

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Spanish flu: A pandemic of influenza A (H1N1) in 1918-19 that caused the highest number of...

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Stage: As regards cancer, the extent of a cancer, especially whether the disease has spre...

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Strain: 1. An injury to a tendon or muscle resulting from overuse or trauma. 2. A heredita...

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Swine flu: A respiratory illness of pigs caused by infection with swine influenza A virus ...

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Syndrome: A combination of symptoms and signs that together represent a disease process.

Synthesis: Putting together different entities to make a whole which is new and different....

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Therapy: The treatment of disease. Therapy is synonymous with treatment.

Thimerosal: A mercury-containing preservative used in some vaccines and other products sin...

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Throat: The throat is the anterior (front) portion of the neck beginning at the back of th...

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Tired: A feeling of a lessened capacity for work and reduced efficiency of accomplishment,...

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Titer: The concentration of a substance in a fluid, such as the concentration of an antibo...

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Vaccination: Injection of a killed microbe in order to stimulate the immune system against...

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Vaccines: Microbial preparations of killed or modified microorganisms that can stimulate a...

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Viral: Of or pertaining to a virus. For example, if a person has a viral rash, the rash wa...

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Virus: A microorganism that is smaller than a bacterium that cannot grow or reproduce apar...

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Viruses: Small living particles that can infect cells and change how the cells function. I...

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Wheezing: A whistling noise in the chest during breathing. Wheezing occurs when the airway...

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Medical Dictionary