Parasite


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Related to Parasite: parasite infection

parasite

 [par´ah-sīt]
1. a plant or animal that lives upon or within another living organism at whose expense it obtains some advantage; see also symbiosis. Parasites include multicelled and single-celled animals, fungi, and bacteria, and some authorities also include viruses.Those that feed upon human hosts can cause diseases ranging from the mildly annoying to the severe or even fatal. (See accompanying table.)
Types of parasites.
adj., adj parasit´ic.
accidental parasite one that parasitizes an organism other than the usual host.
facultative parasite one that may be parasitic upon another organism but can exist independently.
incidental parasite accidental parasite.
malarial parasite Plasmodium.
obligate parasite (obligatory parasite) one that is entirely dependent upon a host for its survival.
periodic parasite one that parasitizes a host for short periods.
temporary parasite one that lives free of its host during part of its life cycle.

par·a·site

(par'ă-sīt), Do not confuse this word with pericyte.
1. An organism that lives on or in another and draws its nourishment therefrom.
2. In the case of a fetal inclusion or conjoined twins, the usually incomplete twin that derives its support from the more nearly normal autosite.
[G. parasitos, a guest, fr. para, beside, + sitos, food]

parasite

(păr′ə-sīt′)
n.
Biology An organism that lives and feeds on or in an organism of a different species and causes harm to its host.

parasite

Infectious disease
1. A disease-causing organism.
2. An organism with an obligatory dependence on a host, to the host's detriment. See Microparasite, Opportunistic parasite.

par·a·site

(par'ă-sīt)
1. An organism that lives on or in another and draws its nourishment therefrom.
2. In the case of a fetal inclusion or conjoined twins, the usually incomplete twin that derives its support from the more nearly normal autosite.
[G. parasitos, a guest, fr. para, beside, + sitos, food]

parasite

An organism that lives on or in the body of another living organism, and depends on it for nutrition and protection. Ectoparasites live on the surface, endoparasites live inside. Parasites do not contribute to the host's welfare and are often harmful. Human parasites, which cause thousands of diseases, include VIRUSES, BACTERIA, FUNGI, PROTOZOA, WORMS, FLUKES, TICKS, LICE, BUGS, some burrowing FLIES and LEECHES.

parasite

an organism that lives in association with, and at the expense of, another organism, the host, from which it obtains organic nutrition. Those that live on the outside of the host, such as ticks, are called ectoparasites, while others such as tapeworms that live inside the host are called endoparasites. Parasites can be FACULATIVE or OBLIGATE and have a range of effects, from inflicting minimum harm to the host which continues to live and reproduce normally (the best-adapted parasites, e.g. TAPEWORMS), to causing the death of the host (e.g. Malaria parasite). COEVOLUTION may occur between host and parasite. See also BIOTROPHIC, NECROTROPHIC.

Parasite

An organism that lives in or with another organism, called the host, in parasitism, a type of association characterized by the parasite obtaining benefits from the host, such as food, and the host being injured as a result.

par·a·site

(par'ă-sīt)
An organism that lives on or in another and draws its nourishment therefrom.
[G. parasitos, a guest, fr. para, beside, + sitos, food]

Patient discussion about Parasite

Q. is an Amoeba dangerous?? and how can i get rid of it? my son is in Peru, he called and told me he got an Amoeba..i have no idea if it's dangerous or not, and how to get rid of it. and what kinds of food he needs to avoid.I'll appreciate help!

A. oooo...an Amoeba is a nasty one...but not so dangerous! it's a one celled parasite which gets into your body if you eat in restaurants that the cook doesn't wash hands after going to the bathroom..it multiplies in your intestine and makes you diarrhea like hell. but if you'll treat it right it will go away as nothing happened. if you don't it can give you liver cyst. and that's not good. he should see a Dr.

More discussions about Parasite
References in periodicals archive ?
Once you find one, though, you'll know which medication to grab the next time it's needed for that specific parasite. Just be sure to always conduct the FERCT to catch any resistance as early as possible.
These countries have warmer climates that are hot enough for the malaria parasites and the mosquitoes that carry them to thrive.
Not only that, but the scientists behind the discovery also said that this proves (https://www.theguardian.com/science/2019/aug/27/oldest-parasite-dna-yet-recorded-found-in-prehistoric-puma-poo) these animals were already suffering from parasites like roundworms a long time before humans ever contracted them , or existed in the first place.
Release date- 12082019 - Mosquitoes can harbor thousands of malaria-causing parasites in their bodies, yet while slurping blood from a victim, they transmit just a tiny fraction of them.
[USA], July 14 (ANI): A new study revealed the way mosquito immune systems fight malaria parasites, which may lay the groundwork for future research to combat the transmission of malaria.
We can clearly see that at every stage of the parasite's life cycle, both parasite and host are vulnerable to the stressors associated with climate change.
The parasites are virtually undetectable with a microscope, but by looking at the DNA we can detect parasites inside a cell, or parasite spores too small to identify with a microscope, Dr Clarke said.
'We found that platelets may kill around 20 per cent of circulating Plasmodium parasites in clinical malaria, and in P.
While attempting to repair the soldier's digestive tract, surgeons found dozens of parasites including a ten and a half inch long roundworm.
Enolva said stingray or shark meat should be cooked thoroughly to kill any parasite larvae.
Scientists think that's because the parasite releases a chemical that changes how the snail behaves.
These differences indicate that the mechanism of protection is crucial for determining whether a protective parasite is truly beneficial.