horizontal transmission


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transmission

 [trans-mish´un]
1. a passage or transfer, as of a disease from one individual to another, or of neural impulses from one neuron to another.
2. the communication of inheritable qualities from parent to offspring.
horizontal transmission the spread of an infectious agent from one individual to another, usually through contact with bodily excretions or fluids, such as sputum or blood, that contain the agent.
vertical transmission transmission from one generation to another. The term is restricted by some to genetic transmission and extended by others to include also transmission of infection from one generation to the next, as by milk or through the placenta.

hor·i·zon·tal trans·mis·sion

transmission of infectious agents from an infected individual to a susceptible contemporary, in contradistinction to vertical transmission.

horizontal transmission

the spread of an infectious agent from one person or group to another, usually through contact with contaminated material, such as sputum or feces.

horizontal transmission

Epidemiology The transmission of an infection from one to another person of the same generation in the same population. Cf Hereditary transmission, Vertical transmission.

hor·i·zon·tal trans·mis·sion

(hōr'i-zon'tăl trans-mish'ŭn)
Transmission of infectious agents from an infected individual to a susceptible contemporary, in contradistinction to vertical transmission.

hor·i·zon·tal trans·mis·sion

(hōr'i-zon'tăl trans-mish'ŭn)
Transmission of infectious agents from an infected individual to a susceptible contemporary.

transmission

1. transfer, as of an infection from one patient to another.
2. of nervous impulses. See neuromuscular transmission.
3. heredity.

airborne transmission
spread of infection by droplet nuclei or dust through the air. Without the intervention of winds or drafts the distance over which airborne infection takes place is short, say 10 to 20 feet.
arthropod transmission
by insect, either mechanically via a contaminated proboscis or feet, or biologically when there is growth or replication of the organism in the arthropod. See also trans-stadial.
biological transmission
involving a biological process, e.g. passing a stage of development of the infecting agent in an intermediate host. Opposite to mechanical transmission.
colostral transmission
a form of vertical transmission via successive generations.
contact transmission
the disease agent is transferred directly by biting, sucking, chewing or indirectly by inhalation of droplets, drinking of contaminated water, traveling in contaminated vehicles.
cyclopropagative transmission
the agent undergoes both development and multiplication in the transmitting vehicle.
developmental transmission
the agent undergoes some development in the transmission vehicle.
fecal-oral transmission
the infectious agent is shed by the infected host in feces and acquired by the susceptible host through ingestion of contamined material.
horizontal transmission
lateral spread to others in the same group and at the same time; spread to contemporaries.
mechanical transmission
the transmitter is not infected in that tissues are not invaded and the agent does not multiply.
propagative transmission
the agent multiplies in the transmission vehicle.
vector transmission
see vector.
vertical transmission
from one generation to the next, perhaps transovarially or by intrauterine infection of the fetus. Some retroviruses are transmitted in the germ line, i.e. their genetic material is integrated into the DNA of either the ovum or sperm.
References in periodicals archive ?
It is believed that factors related to seropositivity are those of horizontal transmission.
B] and plasmid B prevails due to superior horizontal transmission.
A secondary objective was to identify patients at risk of contracting hepatitis B infection through horizontal transmission.
Another important factor is horizontal transmission, which is increased due to sexual transmission associated with multigravidas.
Prevalence increases when animals are infected horizontally, as it has already been reported for dairy cattle; dogs and coyotes which have a very important role in horizontal transmission (1).
This means that the virus can be transmitted earlier increasing horizontal transmission to humans (19,22,23).
In this study we characterized the horizontal transmission of Mycoplasma gallisepticum (MG) in 2 flocks of 11 wild-caught house finches housed in outdoor aviaries over a 6-month period.
Horizontal transmission of hepatitis B virus infection to United States-born children among refugees.
The study, being conducted in six couples and an additional nine individuals at Hill Top Research in West Palm Beach, Florida, will look at the safety of Replacement Therapy and the potential for horizontal transmission of the Replacement Therapy organism to the non-treated member of each couple.
hemionud), or elk (Cervus elaphus nelsoni) present a risk for horizontal transmission to caribou.
It is well recognised and documented that laryngoscopes are a potential source of horizontal transmission leading to development of hospital-acquired infections (HAIs).

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