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Related Concept Videos

Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
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Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Anthelminthic Agents01:15

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...
American Trypanosomiasis01:22

American Trypanosomiasis

Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...

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A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
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A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions

Published on: December 15, 2023

Ascaris and ascariasis.

Christina Dold1, Celia V Holland

  • 1Department of Zoology, School of Natural Science, Trinity College, Dublin 2, Ireland. cdold@tcd.ie

Microbes and Infection
|October 12, 2010
PubMed
Summary
This summary is machine-generated.

Ascaris lumbricoides and Ascaris suum are common roundworms infecting billions globally. This review covers their distribution and control strategies for human and pig infections.

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Area of Science:

  • Parasitology
  • Infectious Diseases
  • Veterinary Medicine

Background:

  • Ascaris lumbricoides infects humans, while Ascaris suum infects pigs, with significant global prevalence.
  • Infections affect approximately 1.2 billion people worldwide.
  • Heavy worm burdens in hosts are linked to increased morbidity.

Purpose of the Study:

  • To provide a comprehensive overview of Ascaris lumbricoides and Ascaris suum.
  • To detail the geographical distribution of these parasitic nematodes.
  • To review current and potential control measures for ascariasis.

Main Methods:

  • Literature review of epidemiological data.
  • Synthesis of information on parasite biology and host-parasite interactions.
  • Analysis of control strategies including public health and veterinary interventions.

Main Results:

  • Ascaris infections are widespread, particularly in regions with poor sanitation.
  • Overdispersion of adult worms is a characteristic feature of host infections.
  • Various control measures exist, but challenges remain in global eradication.

Conclusions:

  • Effective control requires integrated approaches targeting both human and animal health.
  • Understanding parasite distribution and transmission is crucial for intervention success.
  • Continued research and public health efforts are needed to reduce the burden of ascariasis.