241 results found

Search Results for: host

Intermediate host

Intermediate Host Definition When looking at the relationships amongst different biological members of our biosphere, we... Read More

Obligate parasite

Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Definitive host

Definition noun (parasitology) The host at which the parasite spends its final developmental stage, and reaches its mature... Read More

Paratenic host

Definition noun, plural: paratenic hosts An intermediate host which is not needed for the development of the parasite, but... Read More

Biological Viruses

The prime directive of all organisms is to reproduce and survive and this also applies to viruses. Apparently, viruses are... Read More

Final host

Definition noun, plural: final hosts A definitive host Compare:intermediate host See also:host Mentioned in: Cystacanth... Read More

Host cell

Definition noun, plural: host cells (1) A cell that harbors foreign molecules, viruses, or microorganisms. For example, a... Read More

Dead-end host

Dead-end host a host from which infectious agents are not transmitted to other susceptible... Read More

Host

Host An organism that is infected with or is fed upon by a parasitic or pathogenic organism (for example, a virus, nematode,... Read More

Coccidia

Coccidia (singular: coccidium) are sporozoans that live as parasites of the digestive tracts of certain animals. The... Read More

Reservoir host

Definition noun A primary host that harbors the pathogen but shows no ill effects and serves as a source of... Read More

Amplifier host

Amplifier host a host in which infectious agents multiply rapidly to high levels, providing an important source of infection... Read More

Opportunistic pathogen

Opportunistic Pathogen Definition How do we define opportunistic pathogen? The opportunistic pathogen is an infectious... Read More

Virulence

Virulence definition In biology, virulence is defined as the degree by which a pathogenic organism can cause disease.... Read More

Parasite

Definition noun, plural: parasites An organism that obtains nourishment and shelter on another... Read More

Parasitoid

Definition noun, plural: parasitoids An organism that lives on or inside the host at one phase in its life cycle, and... Read More

Endoparasite

Definition noun, plural: endoparasites (parasitology) A parasite that lives within the body of the... Read More

Infective stage

Definition noun (parasitology) The stage in the life cycle of an endoparasite wherein it can initiate infection to its... Read More

Accidental host

Accidental host One that harbors an organism which usually does not infect... Read More

Ectoparasite

Definition noun, plural: ectoparasites (parasitology) A parasite that lives outside the body of the... Read More

Strangler

Definition noun, plural: stranglers (botany) A hemiepiphyte or epiphyte that grows when seed germinates at the canopy of the... Read More

Parasitoidism

Definition noun A form of parasitism wherein an organism (called parasitoid) lives on or inside the host at one phase in its... Read More

Ectoparasitism

Definition noun A form of parasitism wherein the parasite lives outside the body of the host (as opposed to a parasite... Read More

Parasitism

Definition noun A form of symbiosis in which one organism (called parasite) benefits at the expense of another organism... Read More

Subcutaneous filariasis

Definition noun A type of filariasis caused by adult filarial worms that dwell in the subcutaneous layer of the... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Filarioidea

Definition noun (taxonomy) A superfamily of the phylum Nematoda and is comprised of small, threadlike parasitic nematodes... Read More

Indirect life cycle

Definition noun A type of parasitic life cycle wherein the parasite is transmitted indirectly from one host to the next,... Read More

“Mutualism factor” could explain why body does not attack normal flora

When sadness reeks in and you feel as if you are all by yourself, think again. That is because you are never alone. As a... Read More

Antigenic variation

Definition noun, plural: antigenic variations (immunology) The changing of surface proteins by an infectious agent to evade... Read More

Endoparasitism

Definition noun (parasitology) A form of parasitism involving endoparasite Supplement Parasitism is one of the many forms of... Read More

Cestode

Definition noun, plural: cestodes A common name for the species belonging to the class Cestoda Supplement Phylum... Read More

Tapeworm

Definition noun, plural: tapeworms Any of the ribbon-like parasitic worms of the class Cestoda, characterized by possessing... Read More

Loa loa

Definition noun A filarial species of the superfamily Filarioidea; the causative agent of Loa loa filariasis Supplement Loa... Read More

Rabies pathobiology and its RNA virus agent – Lyssavirus

Having a dog as a pet presents a myriad of benefits. One of them is having a companion reputed for being charismatic and... Read More

Living things

Living Things Definition A living things pertains to any organism or a life form that possesses or shows the... Read More

Haustorium

Definition noun, plural: haustoria (botany) Knob-like root for penetrating into and absorbing nutrients and water from the... Read More

Fasciola hepatica

Definition noun A liver fluke belonging to the family Fasciolidae of the class Trematoda, and is endemic in the U.S.,... Read More

Parasitology

Definition noun A scientific study of parasites, their hosts, and the relationship between the parasite and the... Read More