Search results
Results From The WOW.Com Content Network
The host-pathogen interaction is defined as how microbes or viruses sustain themselves within host organisms on a molecular, cellular, organismal or population level. This term is most commonly used to refer to disease-causing microorganisms although they may not cause illness in all hosts. [ 1 ]
If a pathogen has high fitness in the host environment, or is virulent, it will be able to grow and spread quickly within its host. Conversely, if the pathogen is not well adapted to its host environment, then it will not spread or infect the way a well adapted pathogen would. Pathogens like Salmonella, which is a food borne pathogen, are able ...
Latent period – time interval between exposure to a pathogen and when the individual/host becomes infectious, capable of transmitting pathogens. Natural reservoir – animal population or environment in which a pathogen normally lives and multiplies and can be transmitted directly or indirectly to humans.
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 . The guest is typically provided with nourishment and shelter.
Disease ecology is a sub-discipline of ecology concerned with the mechanisms, patterns, and effects of host-pathogen interactions, particularly those of infectious diseases. [1] For example, it examines how parasites spread through and influence wildlife populations and communities.
P. ramosa is an obligate pathogen and it can only grow inside its host. Transmission between hosts takes place through the endospore stage, and is strictly horizontal . [ 2 ] These endospores are highly resistant to different environmental stresses, including freezing temperatures, and can remain in the environment for decades without any ...
A vehicle may passively carry a pathogen, as in the case of food or water may carrying hepatitis A virus. Alternatively, the vehicle may provide an environment in which the agent grows, multiplies, or produces toxin, such as improperly canned foods provide an environment that supports production of botulinum toxin by Clostridium botulinum. [18]
Host tropism is the infection specificity of certain pathogens to particular hosts and host tissues. This explains why most pathogens are only capable of infecting a limited range of host organisms. Researchers can classify pathogenic organisms by the range of species and cell types that they exhibit host tropism for.