Schistosomiasis Mansoni in Yemeni in California: Duration of Infection, Presence of Disease, Therapeutic Management

Warren, Kenneth S.; Mahmoud, Adel A. F.; Cummings, Peter; Murphy, Daniel J.; Houser, Harold B.

doi:10.4269/ajtmh.1974.23.902

Cited by 116 publications

(54 citation statements)

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“…2 The lifespan of an adult schistosome is about 3-5 years, but they can live up to 40 years. 3,4 Available evidence suggests that the eggs, not the adult worms, induce the morbidity caused by schistosome infection. 5 In fact, the immunopathology of schisto somiasis is considered to be due to granuloma formation around tissue-deposited eggs-a complex relation exists between the severity of clinical disease, the intensity of infection, and the infecting species.…”

Section: Introductionmentioning

confidence: 99%

Pulmonary nodules in African migrants caused by chronic schistosomiasis

Gobbi

Buonfrate

Angheben

et al. 2017

The Lancet Infectious Diseases

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Section: Introductionmentioning

confidence: 99%

Pulmonary nodules in African migrants caused by chronic schistosomiasis

Gobbi

Buonfrate

Angheben

et al. 2017

The Lancet Infectious Diseases

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“…Many investigators have stressed the importance of the quantitative estimation of intensity of infection in relation to the epidemiological and clinical studies of S. mansoni infection. 9,10,14,17,21,25 The present study shows that the occurrence of abdominal pain, constipation/flatulence, and fatigue shows a greater positive association with intensity of S. mansoni infection for all age groups compared to noninfected control subjects. Various investigators have noted the positive association of abdominal pain with S. mansoni infection.…”

Section: Discussionmentioning

confidence: 69%

“…It was noted in studies from Uganda and Egypt 16 and in S. mansoni-infected Saudi Arabian recruits in the U.S. However, it was not observed by Cook et al 19 in infected children in St. Lucia, by Warren et al 25 in their study of Yemeni patients residing in the U.S., or by Arap Siognok et al 12 who conducted a study of the disease in Kenya. In the present study other reported symptoms, such as diarrhea, nausea, and poor appetite, occurred equally among both S. mansoni-infected and noninfected individuals.…”

Section: Discussionmentioning

confidence: 80%

Morbidity from Schistosoma Mansoni in Relation to Intensity of Infection in a Community-Based Study

Ghandour¹,

Al-Robai²,

Doenhoff

et al. 1990

Ann Saudi Med

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The morbidity of schistosomiasis mansoni in the Hijaz highlands was investigated in relation to the intensity of infection among a group of 162 patients. Of these, 58.6% showed light infection, 26.52% moderate infection, and only 14.9% heavy infection. The morbidity parameters in these patients were compared to a normal noninfected group of 161 persons residing in Jeddah (nonendemic area). Fatigue, abdominal pain, and constipation occurred more frequently among infected patients. There was a positive relationship between these symptoms and the intensity of infection. Fatigue was observed more frequently among patients older than 21 years, suggesting that this symptom increases with age. Abdominal pain and constipation showed an equal distribution between the under and over 20-years age groups. Hepatomegaly and splenomegaly were somewhat more frequent among patients with high-intensity infection.AM Ghandour, AA Al-Robai, M Doenhoff, AA Banaja, Morbidity from Schistosoma Mansoni in Relation to Intensity of Infection in a Community-Based Study. 1990; 10(4): 420-425 Human infection with Schistosoma mansoni has been reported from several localities in Saudi Arabia and exhibits a patchy distribution that ranged between 0 and 90%.

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“…Thick smear method (Kato and Miura, 1954) were used to detect S. mansoni ova in stool samples by some investigators (Cook et al, 1974;Warren et al, 1974;Siongok et al, 1976). In the present studies, however, the rationale to apply the MIFC method which was modified for schistosome ova detection by Ota and Sato (1957) to the examination of stool samples is that more than 1 g of sample can be examined by the concentration methods in contrast to 50 mg per slide by the thick smear method, and that the concentration method is, at least, a few times more sensitive than the smear method in spite of some ova missed in the process of concentration (Ota and Sato, 1957;Okabe et al, 1960;Iijima et al, 1962).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Human Schistosomiasis in the Taveta Area of Kenya, East Africa

Katamine

Siongok

Kawashima

et al. 1978

Jap. J. Trop. Med. Hyg.

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Abstract:A total of 963 individuals in three villages were examined for schistosomiasis by both skin test and schistosome ova detection in stool and urine in 1974. The antigen used for skin test was VBS adult S. japonicum antigen (1 : 10,000 dilution). Stool and urine samples were examined through the concentration methods. Egg-positive rate was 62.2 per cent in Jipe, 68.0 per cent in Eldoro, 69.6 per cent in Kivalwa. Jipe was infested mostly by S. mansoni, Kivalwa by S. haematobium and Eldoro by both two schistosomes. The egg-positive rate was higher in females than in males in Eldoro. In Jipe and Kivalwa, however, the differences in the rate between males and females were not statistically significant. The rate increased with age in children, reached a peak between the ages of 5 and 14 years and then decreased gradually. The positive rate of skin test was 76.4 per cent in total, higher than that of stool and urine examinations. The skin reaction was weak or absent among many egg-positive children. The skin-testpositive rate increased as the age advanced and reached 95 per cent in inhabitants from 40 years up. The positive rate of skin test was higher among males than females in Jipe. No significant difference in the rate between males and females was found in Eldoro and Kivalwa. Among the egg-positive subjects there was no significant difference in skin reaction between S. mansoni infection and S. haematobium infection. In 1975 stool and urine samples from Jipe, Kivalwa, Kuwahoma and Chala were examined. Kuwahoma proved to be infested by S. haematobium. In Chala schistosome infection was rare. There exist villages infested by S. mansoni and/or S. haematobium in the small area. It seems that VBS adult S. japonicum antigen for skin test and the concentration methods for stool and urine examinations are of use in the epidemiological survey in the areas where S. mansoni and/or S. haematobium infections are prevailing.

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Schistosomiasis Mansoni in Yemeni in California: Duration of Infection, Presence of Disease, Therapeutic Management

Cited by 116 publications

References 0 publications

Pulmonary nodules in African migrants caused by chronic schistosomiasis

Pulmonary nodules in African migrants caused by chronic schistosomiasis

Morbidity from Schistosoma Mansoni in Relation to Intensity of Infection in a Community-Based Study

Prevalence of Human Schistosomiasis in the Taveta Area of Kenya, East Africa

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