airborne transmission


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Related to airborne transmission: droplet transmission, contact transmission

airborne transmission

The transmission of pathogens (bacteria, viruses, spores) by aerosol, from one vector/host to another. Once inside the vector’s respiratory tract, the “bug” develops, matures, reproduces, becomes contagious, and is transmitted to the next host.

airborne transmission

Epidemiology The transmission of pathogens by aerosol, which enter the body by the respiratory tract. See Aerosol.

airborne transmission

transmission of infection due to inhalation of clinical dust or deposition of aerosol fluids (e.g. infected skin squames, nail dust, fungal spores, blood, tissue fluid, lesion exudates and pus)

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 ?
The risk of airborne transmission is incorporated through the widely used Wells-Riley model (Riley et al.
However, the environmental conditions necessary to sustain the reproductive potential of a microorganism when aerosolized is widely variable, and thus, the task of using environmental controls to limit airborne transmission is very difficult.
Most of the available evidence for airborne transmission is based on poorly controlled viability studies related to the effects of artificially aerosolized viral particles on animal susceptibility.
Some pathogens are found to be transmitted through person-to-person contact or droplet spread, whereas others including the measles virus, the influenza virus, and Mycobacterium tuberculosis may be dispersed via airborne transmission (Musher 2003).
We report a case of infantile brucellosis in which airborne transmission in the context of familial brucellosis or indirect contact with the animal source through other family members was considered the only possible means of infant infection.
Airborne transmission has been demonstrated in animal models, but the route of transmission of Pneumocystis organisms among humans is unclear (5).
Airborne transmission and pulmonary deposition of respiratory viruses.
Airborne transmission over long distances between farms has not yet been demonstrated.
This pattern of nasopharyngeal viral load suggested that airborne transmission played an important part in this outbreak in Hong Kong.
An outbreak of Brucella melitensis infection by airborne transmission among laboratory workers.
Droplet and contact transmission are considered the most effective means of transmitting influenza A in hospitals, and the clinical importance of airborne transmission has not been fully elucidated (6).
A school outbreak of Norwalk-like virus: evidence for airborne transmission.

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