Present Status of Trichostrongyliasis in Iran *

Ghadirian, E.; Arfaa, F.

doi:10.4269/ajtmh.1975.24.935

Cited by 33 publications

(60 citation statements)

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“…6 Among those species, T. orientalis and T. colubriformis were detected more frequently in humans. In regions where humans were infected with T. colubriformis , this parasite was also prevalent in animals.…”

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confidence: 99%

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Human Trichostrongylus colubriformis Infection in a Rural Village in Laos

Sato¹,

Yoonuan²,

Sanguankiat³

et al. 2011

The American Society of Tropical Medicine and Hygiene

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In Lahanam Village, Savannakhet Province, Laos, 125 of 253 villagers (49.4%) were found by fecal examination to harbor hookworm eggs. The eggs were heterogeneous in morphology and size, suggesting infections of mixed nematode species. To confirm the hookworm egg species, on a voluntary basis, 46 hookworm egg–positive participants were treated with albendazole, and post-treatment adult worms were collected from purged fecal samples. The common human hookworm was found in only 3 participants; 1 case of Necator americanus, and 2 cases of Ancylostoma duodenale. In contrast, adult Trichostrongylus worms were expelled from most participants (43 of 46, 93.5%). The Trichostrongylus species were confirmed by morphology and internal transcribed spacer 2 sequences; all worms were of the same species (T. colubriformis). In addition, some Trichostrongylus worms were obtained from a goat in the same village and identified as T. colubriformis. The results suggested that T. colubriformis was the main zoonotic species causing hookworm infections in the village.

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“…In regions where humans were infected with T. colubriformis , this parasite was also prevalent in animals. 6 Thus, T. colubriformis was thought to be the main zoonotic species. Conversely, T. orientalis was thought to be a predominantly human parasite.…”

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confidence: 99%

Human Trichostrongylus colubriformis Infection in a Rural Village in Laos

Sato¹,

Yoonuan²,

Sanguankiat³

et al. 2011

The American Society of Tropical Medicine and Hygiene

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“…Epidemiological studies indicate a global distribution and low prevalence of infections in humans (7)(8)(9)(10)(11)(12)(13). Accidental infections by T. orientalis have been reported in Korea, China, Japan and Armenia (9).…”

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confidence: 99%

“…Sandy soil and large-size grasses also contribute to the spread of Trichostrongylus, by facilitating the movement of larvae and their survival, respectively (2,14). The transmission of the parasite to humans is often related to the ingestion of water or unwashed vegetables contaminated with infective larvae, especially where manure is used for soil fertilization (7)(8)(9)15).…”

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confidence: 99%

“…Other species of Trichostrongylus associated with infections in humans have also been described, such as T. orientalis, T. colubriformis, T. vitrinus, T. axei, T. capricola, T. probolurus and T. skrjabin. Nevertheless, the species T. axei, T. colubriformis and T. orientalis are the most common parasites in human infections; most frequently acquired through contact with herbivorous animals (8)(9)(10)(11)(12).…”

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Infección humana por Trichostrongylus spp. en residentes de zonas urbanas de la ciudad de Salvador, Bahia, Brasil

Souza

Menezes

et al. 2013

biomedica

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Results: One-hundred and ten patients (1.2%) were confirmed to be infected by Trichostrongylus spp. The positive cases were significantly more frequent in females (1.6%; p<0.05), with higher distribution in the age group between 11-20 years (1.9%), compared to those aged 51-60 (0.8%) and older than 60 years (0.9%)(p<0.05), independent of gender. Trichostrongylus spp. infections were more common from March to May (40 cases) and showed a homogeneous distribution over the other periods of the year (21-25 cases). The hematological analyses of 60 Trichostrongylus-infected patients showed normal levels of eosinophils in most of the positive cases. Conclusions:The data reveal that the occurrence of infection by Trichostrongylus spp. in residents of Salvador is more frequent than those reported in other urban regions and that it is essential to distinguish the parasite from other nematodes in routine parasitological examination.

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Angiostrongylus(Parastrongylus) and Less Common Nematodes

Yoshimura

2010

Topley &Amp; Wilson's Microbiology and Microbial Infections

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Present Status of Trichostrongyliasis in Iran *

Cited by 33 publications

References 0 publications

Human Trichostrongylus colubriformis Infection in a Rural Village in Laos

Human Trichostrongylus colubriformis Infection in a Rural Village in Laos

Infección humana por Trichostrongylus spp. en residentes de zonas urbanas de la ciudad de Salvador, Bahia, Brasil

Angiostrongylus(Parastrongylus) and Less Common Nematodes

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