Some emergent properties of parasitic interactions include:
•Colonization of a host
•Establishment within the host while evading the immune system responses
•Transmission to new hosts
•Altered host behavior
•Castration of the host
•Use of the host as transport or reservoir
•The ability of a parasite to infect a host and the resulting effects on the host (and parasite) are dependent on the specific parasite-host interaction. Host specificity, virulence, and duration of infection will all depend on which host the parasite is infecting. A parasite may be able to alter the behavior of one host but not another, while an immunocompromised host may be susceptible to infection where a healthy host is not.
It's mainly in how the host is affected. Most of the time, there will be some changes that will emerge in the health and behavior of the host (some quick, some may take time, even years in certain cases). Although, behavioral changes can be a bit complicated to observe sometimes since some parasites can actually control the mind of its host. There could be some alterations in the host's immune system which would eventually show again in the deterioration of the host's health. These changes would really depend on the type of parasite and the host it's affecting though. Hope this helps!
Some emergent properties of parasitic interactions include:
Colonization of a host ,Establishment within the host while evading the immune system responses, Transmission to new hosts, Altered host behavior, Castration of the host , Use of the host as transport or reservoir , The ability of a parasite to infect a host and the resulting effects on the host (and parasite) are dependent on the
specific parasite-host interaction. Host specificity, virulence, and duration of infection will all depend on which
host the parasite is infecting. A parasite may be able to alter the behavior of one host but not another, while an
immunocompromised host may be susceptible to infection where a healthy host is not.