Immunization Schedule, Children Glossary of Terms

The following are health and medical definitions of terms that appear in the Immunization Schedule, Children 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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Anemia: The condition of having a lower-than-normal number of red blood cells or quantity ...

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Arms: An appendage in anatomy and in clinical trials. See: Arm.

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

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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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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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Cell: The basic structural and functional unit of any living thing. Each cell is a small c...

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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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Cervical cancer: Cancer of the entrance to the womb (uterus). The cervix is the lower, na...

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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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Children's immunizations: Vaccinations given to children. In the US, it is currently recom...

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

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Chronic disease: A disease that persists for a long time. A chronic disease is one lasting...

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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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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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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.

Endocrinology: The study of the medical aspects of hormones, including diseases and condit...

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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 degr...

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Flu: Short for influenza. The flu is caused by viruses that infect the respiratory tract w...

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Flu vaccine: The flu vaccination (influenza) is recommended for persons at high risk for...

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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 usua...

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

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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.

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

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

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Infant: A young baby, from birth to 12 months of age.

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

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Influenza: The flu is caused by viruses that infect the respiratory tract which are divide...

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

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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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Laboratory: A place for doing tests and research procedures, and for preparing chemicals a...

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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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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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Pediatric: Pertaining to children.

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

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Pertussis: Whooping cough, a communicable, potentially deadly illness characterized by fi...

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

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

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Reye syndrome: A sudden, sometimes fatal, disease of the brain (encephalopathy) with degen...

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

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

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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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Sickle cell anemia: A genetic blood disease due to the presence of an abnormal form of hem...

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

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

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Toxicology: The study of the nature, effects, and detection of poisons (toxins) and the tr...

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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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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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Whooping cough: Also known as pertussis, this is a feared infectious disease that can stri...

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