Quantity described both in magnitude and in direction. A force vector is the application of force of a given magnitude in a given direction.
Animal serving as a means of delivery of pollen or disease organisms.
Plasmid or other self-replicating DNA molecule that transfers DNA between cells in nature or in recombinant DNA technology.
The agent used (by researchers) to carry new genes into cells. Plasmids currently are the vectors of choice, though viruses and other bacteria are increasingly being used for this purpose.
Carrier of infectious agent of disease from one person to another (usually insects).
An organism that carries disease agents, e.g., the anopheles mosquito is the vector for malaria.
An insect or animal which carries a disease and can pass it to humans.
A plasmid or bacteriophage into which foreign DNA can be introduced for the purposes of cloning.
In public health, a blood-feeding insect, such as a mosquito, which transmits disease.
Person, animal, or microorganism that carries and transmits disease. Mosquitoes, for example, are vectors of malaria and yellow fever, casing disease-producing parasites.
A carrier of disease-causing microorganisms from one host to another (eg, a fly, louse, or mosquito).
A public health term for an animal, arachnid (such as a tick), or insect (such as a mosquito) that can transmit a disease-causing microorganism to people. Vectors can transmit viruses, bacteria, protozoa, and worms from one host to another. The most common diseases transmitted by infected vectors include Rocky Mountain spotted fever and Lyme disease (which are carried by ticks) and malaria (which is carried by mosquitoes).
An animal, usually an insect or a tick, that transmits parasitic microorganisms, and therefore the diseases they cause, from person to person or from infected animals to human beings. Mosquitoes, for example, are vectors of malaria, filariasis, and yellow fever.
An animal that is the carrier of a particular infectious disease. A vector picks up the infectious agent rom an infected person’s blood or faeces and carries it in or on its body before depositing the agent on or into a new host. Fleas, lice, mosquitoes and ticks are among common vectors of disease to humans. When a vector is used by the infectious agent to complete part of its life-cycle for example, the malarial agent plasmodium conducts part of its life-cycle in the mosquito the vector is described as biological. If the vector simply carries the agent but is not a host for part of its life-cycle, the vector is described as mechanical. Flies, for example, may carry an infection such as bacterial dysentery from infected faeces to the food of another ‘host’.
A quantity that is completely specified by magnitude, direction, and sense, which can be represented by a straight line of appropriate length and direction.
An entity possessing the ability to transfer and disseminate a pathogenic agent, predominantly insects, nematodes, and similar organisms capable of carrying viruses.
An organism, such as insects or rodents, capable of transmitting diseases to humans.
A vector is an animal that serves as a carrier for a specific infectious disease. It acquires pathogens from an infected source, such as the blood or feces of an infected individual or animal. The vector then carries these pathogens either inside or on its body before transferring them to a new host, where they cause infection. Generally, part of the pathogen’s lifecycle must occur within the body of the vector.
Mosquitoes, fleas, lice, ticks, and flies play a critical role as disease carriers for humans. Numerous organisms have established intricate connections with particular vectors, just like the trypanosoma parasites have with tsetse flies.
An organism, typically an arthropod, that can transfer germs from one host to another, as seen in the transmission of malaria by a specific type of mosquito, for example.