vertical transmission


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Related to vertical transmission: horizontal transmission

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.

ver·ti·cal trans·mis·sion

1. transmission of a virus (for example, RNA tumor virus) by means of the genetic apparatus of a cell in which the viral genome is integrated;
2. for infectious agents in general, transmission of an agent from an individual to its offspring, that is, from one generation to the next. Compare: horizontal transmission.

vertical transmission

the transfer of a disease, condition, or trait from one generation to the next either genetically or congenitally, such as the spread of an infection through breast milk or through the placenta.

vertical transmission

Epidemiology Mother-to-child transmission The transmission of an infection through the placenta to the fetus, as occurs in the 'TORCH' infections–toxoplasmosis, rubella, CMV, herpes, syphilis, and HIV. Cf Hereditary transmission, Horizontal transmission.

ver·ti·cal trans·mis·sion

(vĕr'ti-kăl trans-mish'ŭn)
1. Passing a virus (e.g., RNA tumor virus) by means of the genetic apparatus of a cell in which the viral genome is integrated.
2. For infectious agents in general, transmission of an agent from an individual to its offspring. i.e., from one generation to the next.
Compare: horizontal transmission

vertical transmission

Transmission, as of a hereditary characteristic or of a disease, from parent to offspring. Horizontal transmission is transmission between contemporaries or individuals of the same generation.

ver·ti·cal trans·mis·sion

(vĕr'ti-kăl trans-mish'ŭn)
1. Passing a virus by means of the genetic apparatus of a cell in which the viral genome is integrated.
2. For infectious agents in general, transmission of an agent from an individual to its offspring.

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 ?
Thenmozhi et al (6) recorded vertical transmission of dengue virus in Ae.
She is the project leader on the Vertical Transmission Study, a large cohort study examining the risks of postnatal HIV transmission and infant feeding, and has a specialist interest in early infant feeding.
Irrespective of how vertical transmission risk was prioritized in their decision-making, many who did not intend to bear children postdiagnosis spoke of a strong desire for motherhood.
Thus, spatial and temporal heterogeneity within a patch increase the relative importance of vertical transmission.
We have used this approach to prevent dengue maternal complications and to reduce dengue vertical transmission at Fundacion Valle del Lili.
Consistent with a previous study (5), vertical transmission risk by pregnancy was classified based on presence of maternal HCV infection (anti-HCV antibody or HCV RNA).
Ending vertical transmission of hepatitis B: the third trimester intervention.
Pregnancy may be the only clinical access point for the women of reproductive age group in limited resources countries and knowing the HCV status of pregnant women will provide scope for counselling, take measures to reduce vertical transmission and management of HCV, followup and treatment of baby.
Now we need to show that vertical transmission occurs in nature," study co-author Robert Tesh says.
1] The horizontal route of transmission has been reported to be the predominant mode of HBV transmission in SA,[4,5] despite numerous African studies that have reported that perinatal vertical transmission occurs in 2 - 30% of infants born to HBV-infected mothers.