What are helminthic infections?
Helminthiasis, also known as worm infection, is any macroparasitic disease of humans and other animals in which a part of the body is infected with parasitic worms, known as helminths. There are numerous species of these parasites, which are broadly classified into tapeworms, flukes, and roundworms.
What are the examples of helminthic diseases?
The most common helminthiases are those caused by infection with intestinal helminths, ascariasis, trichuriasis, and hookworm, followed by schistosomiasis and LF (Table 1).
What is the meaning of helminthic?
a parasitic worm
: a parasitic worm (as a tapeworm, liver fluke, ascarid, or leech) especially : one that parasitizes the intestine of a vertebrate. Other Words from helminth. helminthic \ hel-ˈmin(t)-thik \ adjective.
What are 3 examples of helminthic infections that we can see in humans and dogs?
Some of the most important and well-known human zoonoses are caused by worm or helminth parasites, including species of nematodes (trichinellosis), cestodes (cysticercosis, echinococcosis) and trematodes (schistosomiasis).
How are helminthic diseases transmitted to humans?
Soil-transmitted helminths live in the intestine and their eggs are passed in the feces of infected persons. If an infected person defecates outside (near bushes, in a garden, or field) or if the feces of an infected person are used as fertilizer, eggs are deposited on soil.
What are the types of helminths?
The major groups of parasitic helminths include:
- platyhelminths (flatworms)
- acanthocephalins (thorny-headed worms)
- cestodes (tapeworms)
- trematodes (flukes)
- nematodes (roundworms).
What are the symptoms of helminths?
People with light soil-transmitted helminth infections usually have no symptoms. Heavy infections can cause a range of health problems, including abdominal pain, diarrhea, blood and protein loss, rectal prolapse, and physical and cognitive growth retardation.
How this helminthic infection can be prevented?
Control is based on periodical deworming to eliminate infecting worms, health education to prevent re-infection, and improved sanitation to reduce soil contamination with infective eggs. Safe and effective medicines are available to control infection.
How are helminths diagnosed?
Conventionally, the STHs are diagnosed by the examination of fecal or other GI specimens for the presence of helminthic eggs, larvae or sometimes adult worms or their segments.
How the helminthic infection can be prevented?
The global strategy for the control of soil-transmitted helminthiasis is based on (i) regular anthelminthic treatment, (ii) health education, (iii) sanitation and personal hygiene and (iv) other means of prevention with vaccines and remote sensoring.
How are helminthic diseases usually transmitted to humans?
Helminths are transmitted to humans in many different ways (Fig. 87-1). The simplest is by accidental ingestion of infective eggs (Ascaris, Echinococcus, Enterobius, Trichuris) or larvae (some hookworms). Other worms have larvae that actively penetrate the skin (hookworms, schistosomes, Strongyloides).
What is the classification of helminths?
There are three main groups of helminths (derived from the Greek word for worms) that are human parasites: Flatworms (platyhelminths) – these include the trematodes (flukes) and cestodes (tapeworms). Thorny-headed worms (acanthocephalins) – the adult forms of these worms reside in the gastrointestinal tract.
How is helminth infection diagnosed?
Infection with STH can be readily diagnosed by detection of helminth eggs in stool samples using microscopic techniques. The most widely used approach is the Kato-Katz technique, which is also recommended by the World Health Organization.
What are the types of helminth?
There are three types of helminths: flukes (trematodes), tapeworms (cestodes), and roundworms (nematodes).