Where this tick exists, it is an important vector of human and animal disease agents
. In China and Japan, it transmits the severe fever with thrombocytopenia syndrome virus (SFTSV), which causes a human hemorrhagic fever (2), and Rickettsia japonica, which causes Japanese spotted fever (3).
Because the disease agents
convey from water sources to ponds.
And finally, the artificial constructs created by genetic engineering are designed to cross species barriers and to jump into genomes, to further enhance and speed up horizontal gene transfer and recombination, now acknowledged to be the major route to creating new disease agents
, and possibly much more important than point mutations which change isolated bases in the DNA.
Last summer, University of California (UC) scientists identified the disease agent
as a yet unnamed species of Phytophthora.
We may tend to think that each disease has a name and that a disease agent
must be found to correspond with it.
Yet Sick Building Syndrome (SBS) is not only caused by a disease agent
. The basic mechanism is the presence of an abnormally high concentration of a chemical or biological agent that may be a normal part of the indoor environment.
Miss Johnston, aged 29, who lives near Cheadle, Staffs, is one of six people involved in a test case at the High Court in London to claim damages for the psychiatric illness they say they have developed as a result of being told they may be incubating th e Creutzfeld Jakob Disease agent
* Field tests (2 to 3 years) where candidate quarantine material is grafted to an "indicator" plant which readily exhibits characteristic disease symptoms if the suspected disease agent
This Genalysis platform will combine the ability to sequence the DNA of the infectious organism, in a sealed microchip based system, direct from clinical specimen, with analysis that enables actionable identification of the disease agent
within a few hours, a key requirement in the effective treatment of infectious diseases.
The project is called project called Midas (Models of Infectious Disease Agent
Although vaccines are not available to stop all forms of BRD they should reduce the impact and make cases easier to deal with, except when a new disease agent
arrives on the farm.
Vaccines wage their wars under the radar, priming immune systems to fight a disease agent
that is quickly quashed if it ever does invade.