Hymenolepiasis Caused by Hymenolepis nana in Humans and Natural Infection in Rodents in a Marginal Urban Sector of Guayaquil, Ecuador

Peralta, Roberto Darwin Coello; Mazamba, María de Lourdes Salazar; Gómez, Betty Judith Pazmiño; Collaguazo, Diego Martín Cushicóndor; Landires, Eduardo A Gómez; Ramallo, Geraldine

doi:10.12659/ajcr.939476

Cited by 3 publications

References 15 publications

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Influence of tides on the dissemination and related health risks of intestinal helminths along the Kribi beaches (Atlantic Coast, Southern Cameroon)

Nana,

Tchakonté,

Pahane Mbiada

et al. 2024

J. Helminthol.

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Kribi is a seaside town that welcomes thousands of tourists each year. However, the poor sanitation condition of its beaches along the Atlantic coast is not without risk for visitors. In this study, we used the formol-ether concentration technique to identify and quantify larvae or eggs of intestinal helminths in waters of three regularly visited Kribi beaches (Mpalla, Ngoyè, and Mboamanga). Results revealed that all identified larvae and eggs were cestodes (Hymenolepis nana) and nematodes (Strongyloides sp., Ascaris sp., Ancylostoma duodenale and Trichuris trichiura). All the helminth eggs and larvae showed high abundance at low tide during rainy seasons. Ancylostoma duodenale eggs, totally absent at Mpalla, were densely present at low tide at Ngoyè (301 ± 15 eggs/L). Trichuris trichiura eggs showed the lowest abundance (0 to 62 eggs/L) at all sites. Abiotic variables indicated that waters at the various beaches were basic (pH: 8.75–9.77), generally warmer (32.44°C at Mpalla in the Short Rainy Season), more oxygenated at low tide, and moderately mineralized at high tide. Positive and significant correlations were observed at Ngoyè at low tide between Strongyloides sp. larvae and dissolved oxygen (P ˂ 0.05); and between Ancylostoma duodenale eggs and temperature (P ˂ 0.05). The overall results indicated that the beaches studied are subjected to fecal pollution. This pollution is more accentuated during low tides than during high tides. Depending on tidal movements, swimmers risk exposure to helminth eggs and larvae known to be responsible for gastroenteritis.

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Influence of tides on the dissemination and related health risks of intestinal helminths along the Kribi beaches (Atlantic Coast, Southern Cameroon)

Nana,

Tchakonté,

Pahane Mbiada

et al. 2024

J. Helminthol.

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Hymenolepis nana: a case report of an intestinal helminthic infection from Northern India

Singh,

Sen,

Raj

et al. 2024

MGM J Med Sci

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Hymenolepis nana (H. nana), known as the dwarf tapeworm, is an intestinal helminth. This report highlights a case of H. nana infection in a young female from Northern India who presented with abdominal pain and achieved a favorable outcome following antiparasitic treatment. An 18-year-old female from a rural community in Kothara village, Baharaich, Uttar Pradesh, India, was diagnosed with H. nana infection. She exhibited mild iron deficiency anemia and granulocytosis but remained largely asymptomatic despite a moderate infection burden. While H. nana infections are often asymptomatic, prompt treatment is essential. Without intervention, the infection can spread within isolated rural populations. Therefore, incorporating H. nana screening into routine evaluations for intestinal parasites and treating even asymptomatic cases is vital to prevent further transmission.

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Navigating the Intestinal Parasite Landscape

Chawla,

Bernard,

Blavo

2024

Infectious Diseases

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Intestinal parasitic infections afflict over 3.5 billion individuals globally, leading to an estimated 200,000 deaths annually. Acknowledging variations in susceptibility and outcomes across diverse demographic groups is essential for effective intervention. This chapter provides an in-depth examination of medically significant intestinal parasites, including three protozoa, two nematodes, two cestodes, and one trematode, selected specifically for their primary pathogenesis within the intestines. We offer comprehensive insights into their morphology, pathogenesis mechanisms, and current and emerging diagnostic and therapeutic modalities. By fostering a deeper understanding of intestinal parasitic diseases, this work aims to contribute to the formulation of targeted intervention strategies, ultimately reducing morbidity and mortality associated with these widespread infections.

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Hymenolepiasis Caused by Hymenolepis nana in Humans and Natural Infection in Rodents in a Marginal Urban Sector of Guayaquil, Ecuador

Cited by 3 publications

References 15 publications

Influence of tides on the dissemination and related health risks of intestinal helminths along the Kribi beaches (Atlantic Coast, Southern Cameroon)

Influence of tides on the dissemination and related health risks of intestinal helminths along the Kribi beaches (Atlantic Coast, Southern Cameroon)

Hymenolepis nana: a case report of an intestinal helminthic infection from Northern India

Navigating the Intestinal Parasite Landscape

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