Search results
Results from the WOW.Com Content Network
Susceptibles have been exposed to neither the wild strain of the disease nor a vaccination against it, and thus have not developed immunity.Those individuals who have antibodies against an antigen associated with a particular infectious disease will not be susceptible, even if they did not produce the antibody themselves (for example, infants younger than six months who still have maternal ...
Host factors that may vary in a population and affect disease susceptibility can be innate or acquired. Some examples: [1] general health; psychological characteristics and attitude; nutritional state; social ties; previous exposure to the organism or related antigens; haplotype or other specific genetic differences of immune function ...
To give a few examples, Morbillivirus is transmitted from an infected human host to a susceptible host as they are transmitted by respiration through airborne transmission. Campylobacter ( campylobacteriosis ) is a common bacterial infection that is spread from human or non-human reservoirs by vehicles such as contaminated food and water.
Another example can be seen with Lactuca serriola versus Bremia lactucae. Clayton Oscar Person [6] was the first scientist to study plant pathosystem ratios rather than genetics ratios in host-parasite systems. In doing so, he discovered the differential interaction that is common to all gene-for-gene relationships and that is now known as the ...
A virus can enter a susceptible cell, but it may or may not be able to replicate. A virus may only replicate in a permissive cell. Viral replication will therefore occur in a susceptible cell which is also a permissive cell that 1) facilitates entry (susceptibility) and 2) supports intracellular replication (permissive cell).
The black rat is a reservoir host for bubonic plague.The rat fleas that infest the rats are vectors for the disease.. In biology and medicine, a host is a larger organism that harbours a smaller organism; [1] whether a parasitic, a mutualistic, or a commensalist guest ().
One proposal suggests that the disease is resulted from a host transfer of the walnut twig beetle and its Geosmithia associate from native, resistant Juglans (Arizona walnut and possibly southern California walnut) into susceptible species of walnut. Several data seem to support this hypothesis.
Viruses, for example, must often bind to specific cell surface receptors to enter a cell. Many viral membranes contain virion surface proteins that are specific to particular host cell surface receptors. [2] If a host cell expresses the complementary surface receptor for the virus, then the virus can attach and enter the cell.