Anemia(a-NEE-mee-a) A condition in which the number of red blood cells is below normal.
AnophelesA genus of mosquito, some species of which can transmit human malaria.
AnorexiaAn abnormal loss of the appetite for food. Anorexia can be caused by cancer, AIDS, a mental disorder (i.e., anorexia nervosa), or other diseases.
AnthropophilicDescribes mosquitoes that prefer to take blood meals from humans.
AntibioticA drug used to treat infections caused by bacteria and other microorganisms. Atrial Fibrillation: A heart rhythm disorder (arrhythmia) that usually…
Antibody(AN-tee-BAH-dee) A type of protein made by plasma cells (a type of white blood cell) in response to an antigen (foreign substance).
AntigenA substance that causes the immune system to make a specific immune response.
Antimicrobial agentsThe drugs, chemicals, or other substances that kill or slow the growth of microbes.
Antimicrobial resistanceAntimicrobial resistance is the result of microbes changing in ways that reduce or eliminate the effectiveness of drugs, chemicals, or other agents to…
ArtemisininsA class of drugs used for the treatment (not prevention) of malaria usually as a part of a combination therapy, derived from the sweet wormwood or Qinghao…
AtovaquoneA drug used against malaria. It is found in the combination atovaquone-proguanil which can be used for both prevention and treatment.
AutochthonousRegarding malaria, it refers to local transmission by mosquitoes. This can either be indigenous (a geographic area where malaria occurs regularly) or…
B-cell (B-lymphocyte)White blood cells of the immune system that are derived from the bone marrow and spleen. B cells develop into plasma cells, which produce antibodies.
Bacteria(bak-TEER-ee-uh) A large group of single-cell microorganisms. Some cause infections and disease in animals and humans.
CarbamateA chemical product used as an insecticide.
Cerebral malariaA severemalaria syndrome in which infected red blood cells obstruct blood circulation in the small blood vessels in the brain and/or release cytokines…
ChemoprophylaxisThe use of antimalarial drugs to prevent malaria disease.
ChloroquineA drug used against malaria for both prevention and treatment. A very safe and inexpensive drug, its value has been compromised by the emergence of…
CinchonismSide effects from quinine or quinidine. Includes tinnitus, headache, nausea, diarrhea, altered auditory acuity, and blurred vision.
ClindamycinAn antibiotic that can be used for the treatment of malaria in combination with a second drug, usually quinine or quinidine.
Clinical cureElimination of malaria symptoms, sometimes without eliminating all parasites. See "radical cure" and "suppressive cure/treatment."
Coma(KOH-muh) A condition in which a patient is in a state of deep sleep and cannot be awakened.
Congenital malariaMalaria in a newborn or infant, transmitted from the mother.
Cryptic malariaA case of malaria where epidemiologic investigations fail to identify an apparent mode of acquisition (this term applies mainly to cases found in…
DEETN,N-diethylmetatoluamide, an ingredient of insect repellents.
DefervescenceThe reduction of a patient's abnormally elevated temperature into the normal range.
DoxycyclineAn antibiotic drug used to treat infection.
Drug resistanceThe failure of cancer cells, viruses, or bacteria to respond to a drug used to kill or weaken them.
dyspneaDifficult, painful breathing or shortness of breath.
EfficacyEffectiveness. In medicine, the ability of an intervention (for example, a drug or surgery) to produce the desired beneficial effect.
EliminationIn the context of malaria, reducing all local transmission down to zero cases within a defined geographic location.
EndemicWhere disease occurs on a consistent basis.
EndophagicAn endophagic mosquito is a mosquito that feeds indoors.
EndophilicAn endophilic mosquito is a mosquito that tends to inhabit/rest indoors. Endophilism facilitates the blocking of malaria transmission through application…
EpidemicA disease that occurs clearly in excess of normal expectation and spreads rapidly through a demographic segment of the human population.
Epidemiology(EH-pih-dee-mee-AH-loh-jee) The study of the patterns, causes, and control of disease in groups of people.
EradicationIn the context of malaria, reducing the number of malaria parasites that circulate in the natural world to zero.
Erythrocyte(eh-RITH-roh-site) A cell that carries oxygen to all parts of the body. Also called RBC and red blood cell.
Erythrocytic stageA stage in the life cycle of the malaria parasite found in the red blood cells. Erythrocytic stage parasites cause the symptoms of malaria.
Etiology(EE-tee-AH-loh-jee) The cause or origin of disease.
Exoerythrocytic stageA stage in the life cycle of the malaria parasite found in liver cells (hepatocytes). Exoerythrocytic stage parasites do not cause symptoms.
ExophagicAn exophagic mosquito is a mosquito that feeds outdoors.
ExophilicAn exophilic mosquito tends to inhabit/rest outdoors. Residual insecticides in buildings are less effective at controlling exophilic mosquitoes.
FansidarBrand name of sulfadoxine-pyrimethamine, a drug used against malaria. Its value has been compromised by the emergence of drug-resistant malaria parasites.
G6PD deficiencyAn inherited abnormality that causes the loss of a red blood cell enzyme. People who are G6PD deficient should not take the antimalarial drug primaquine.
GametocyteThe sexual stage of malaria parasites. Male gametocytes (microgametocytes) and female gametocytes (macrogametocytes) are inside red blood cells in the…
GeneThe functional and physical unit of heredity passed from parent to offspring. Genes are pieces of DNA, and most genes contain the information for making a…
Genetic diversityThe variety of different types of genes in a species or population.
HalofantrineA drug used against malaria in some countries, but not recommended by CDC.
HematocritThe amount of blood consisting of red blood cells, measured as a percentage.
immune system(ih-MYOON SIS-tem) The complex group of organs and cells that defends the body against infections and other diseases.
Immunity(ih-MYOO-nih-tee) The condition of being protected against an infectious disease.
immunizationA technique used to cause an immune response that results in resistance to a specific disease, especially an infectious disease.
Imported malariaMalaria acquired outside a specific geographic area.
Incubation periodThe interval of time between infection by a microorganism and the onset of the illness or the first symptoms of the illness.
Indigenous malariaMosquito-borne transmission of malaria in a geographic area where malaria occurs regularly.
Indoor residual spraying (IRS)(IRS)Treatment of houses where people spend night-time hours, by spraying insecticides that have residual efficacy (i.e.
Induced malariaMalaria acquired through artificial means (e.g. blood transfusion, shared needles or syringes, or malariotherapy).
InfectionInvasion and multiplication of germs in the body. Infections can occur in any part of the body and can spread throughout the body.
Introduced malariaMosquito-borne transmission of malaria from an imported case in a geographic area where malaria does not occur regularly.
Jaundice(JAWN-dis) A condition in which the skin and the whites of the eyes become yellow, urine darkens, and the color of stool becomes lighter than normal.
LariamBrand name of mefloquine, a drug used against malaria for both prevention and treatment.
LarvaeAn immature stage of a developing mosquito. Mosquito larvae are wingless and develop in water.
Leukocyte(LOO-koh-site) A white blood cell. Refers to a blood cell that does not contain hemoglobin.
LeukocytosisIncrease in total white blood cell count.
Leukopenia(LOO-koh-PEE-nee-uh) A condition in which the number of leukocytes (white blood cells) in the blood is reduced.
Lymphocyte(LIM-foh-site) A type of white blood cell. Lymphocytes have a number of roles in the immune system, including the production of antibodies and other…
Molecular methodsLaboratory techniques that are based on identification and characterization of certain molecules and gene sequences of a pathogen's genetic makeup.
parasiteAn animal or plant that gets nutrients by living on or in an organism of another species.
ParasitemiaThe presence of parasites in the blood. The term can also be used to express the quantity of parasites in the blood (e.g., "a parasitemia of 2%").
ParoxysmA sudden attack or increase in intensity of a symptom, usually occurring in intervals.
PathogenBacteria, viruses, parasites or fungi can cause disease.
PhagocyteAn immune system cell that can surround and kill microorganisms and remove dead cells. Phagocytes include macrophages.
PlasmodiumThe genus of the parasite that causes malaria. The genus includes many species.
PlateletsSmall, irregularly-shaped bodies in the blood that contain granules. These cells are important components of the blood coagulation (clotting) system.
PolymorphicLiterally meaning having more than one form. In terms of genes it means that there are several variants (alleles) of a particular gene that occur…