Childhood Immunization Schedule Glossary of Terms

The following are health and medical definitions of terms that appear in the Childhood Immunization Schedule article.

Acellular: Not made up of cells or divided into cells. Or lacking intact cells as, for ex...

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American Academy of Pediatrics: AAP. Its member pediatricians "dedicate their efforts and ...

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

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

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Bacteria: Single-celled microorganisms that can exist either as independent (free-living) ...

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Bacterial: Of or pertaining to bacteria, as in a bacterial lung infection.

Bacterium: The singular of bacteria.

Brain: The portion of the central nervous system that is located within the skull. It func...

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Breathing: The process of respiration, during which air is inhaled into the lungs through ...

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Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, ...

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

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Centers for Disease Control and Prevention: The US agency charged with tracking and invest...

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Cervical: Having to do with any kind of neck, including the neck on which the head is perc...

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Cervix: The cervix is the lower, narrow part of the uterus (womb). The uterus, a hollow, ...

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Chickenpox: A highly infectious viral disease also known medically as varicella -- in many...

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

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Clinical trials: Trials to evaluate the effectiveness and safety of medications or medical...

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Coma: A state of deep, unarousable unconsciousness. A coma may occur as a result of head t...

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Contagious: capable of being transmitted from one human to another human via direct or ind...

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COPD: Chronic obstructive pulmonary disease. Any disorder that persistently obstructs bron...

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Cough: A rapid expulsion of air from the lungs, typically in order to clear the lung airwa...

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Department of Health and Human Services: The United States government's principal agency f...

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

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Diarrhea: A common condition that involves unusually frequent and liquid bowel movements. ...

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Diphtheria: An acute infectious upper respiratory tract disease that affects the throat. I...

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Discharge: 1.The flow of fluid from part of the body, such as from the nose or vag...

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DTaP: Diphtheria-Tetanus-acellular Pertussis vaccine.

Epidemic: The occurrence of more cases of a disease than would be expected in a community...

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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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Food and Drug Administration: An agency within the US Public Health Service that provides ...

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Gastroenteritis: Inflammation of the stomach and the intestines. Gastroenteritis can cause...

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Genital: Pertaining to the external and/or internal organs of reproduction.

Health and Human Services: The United States government's principal agency for "protecting...

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Hepatitis: Inflammation of the liver, irrespective of the cause. Hepatitis is caused by a ...

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Hepatitis A: Inflammation of the liver caused by the hepatitis A virus (HAV). HAV is usual...

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Hepatitis B: Inflammation of the liver due to the hepatitis B virus (HBV), once thought to...

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HIB: Haemophilus influenzae type B.

HPV: Human papillomavirus.

Human papillomavirus: HPV. A family of over 100 viruses including those which cause warts ...

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

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

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Immunity: The condition of being immune. Immunity can be innate'for example, humans are in...

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Immunization: Vaccination. Immunizations work by stimulating the immune system, the natur...

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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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Intestine: The long, tubelike organ in the abdomen that completes the process of digestion...

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Intrauterine: In the uterus.

Intussusception: Infolding (prolapse) of a portion of the intestine within another immedia...

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IPV: Inactivated polio vaccine. The polio virus in IPV has been inactivated (killed). The...

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Iron: An essential mineral. Iron is necessary for the transport of oxygen (via hemoglobin ...

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Joint: The area where two bones are attached for the purpose of permitting body parts to m...

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Liver: The largest solid organ in the body, situated in the upper part of the abdomen on t...

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Liver disease: Liver disease refers to any disorder of the liver. The liver is a large org...

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Lockjaw: See Tetanus.

Measles: An acute and highly contagious viral disease characterized by fever, runny nose,...

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Meningitis: Inflammation of the meninges, the three membranes that envelop the brain and t...

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Meningococcal vaccine: A vaccine to prevent meningococcal infection, including meningococc...

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Meningococcus: A type of bacteria now formally known as Neisseria meningitidis, which is r...

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MMR: Measles, mumps, rubella vaccine, a combination vaccine.

Mouth: 1. The upper opening of the digestive tract, beginning with the lips and con...

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Mumps: An acute (sudden, shortlived) viral illness that usually presents with inflammation...

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Nasal: Having to do with the nose.

Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pa...

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Paralysis: Loss of voluntary movement (motor function). Paralysis that affects only one mu...

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Pediatrics: The field of medicine that is concerned with the health of infants, children, ...

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Penile: Of or pertaining to the penis.

Pertussis: Pertussis, also known as "whooping cough," is a highly contagious, acute respir...

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Placebo: A "sugar pill" or any dummy medication or treatment.

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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Poliovirus: A member of the enterovirus subgroup, family Picornaviridae. Enteroviruses are...

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Precancerous: Pertaining to something that is not yet overtly cancerous, but appears to be...

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

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Public health: The approach to medicine that is concerned with the health of the community...

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Respiratory: Having to do with respiration.

Rotavirus: A virus that is a leading cause of severe diarrhea and dehydration in young chi...

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Sensitivity: 1. In psychology, the quality of being sensitive. As, for example, sen...

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Sexually transmitted disease: Any disease transmitted by sexual contact; caused by microor...

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Sexually transmitted infection: An infection that can be transferred from one person to an...

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Shock: In medicine, a critical condition that is brought on by a sudden drop in blood flow...

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Smallpox: A highly contagious and frequently fatal viral disease that is characterized by ...

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Spleen: An organ that is located in the upper-left part of the abdomen, not far from the s...

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STD: Sexually transmitted disease.

Stool: The solid matter that is discharged in a bowel movement.

Streptococcus: A group of bacteria that causes a multitude of diseases. Under a microscope...

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Tetanus: An often fatal infectious disease that is caused by the bacterium Clostridium tet...

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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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Varicella vaccination: See Chickenpox immunization.

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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Vulvar: Pertaining to the vulva, the female external genitalia including the labia majora,...

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Whooping cougn: Whooping cough, also known as "pertussis," is a highly contagious, acute r...

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Medical Dictionary