PROTOZOAN INFECTIONS/in infant and child Dotaz Zobrazit nápovědu

Fresh stool samples obtained from 1407 adult patients who sought treatment in Takeo province hospital and 332 Takeo preschool and school-age children from 3 to 18 years of age were examined for the presence of intestinal parasites using the technique of native preparation and the flotation method of Faust with subsequent staining with Lugol solution to demonstrate cysts. In hospital patients, a total of 13 protozoan and 9 helminth species were diagnosed. The prevalence of Entamoeba histolytica (cysts and trophozoites) was highest in the age group 15-18 years (18.3%), the peak prevalence of Gairdia lamblia (27.6%) occurred in children of the age group 6-9 years. The highest frequency distribution of Pentatrichomonas hominis (20.1%) was recorded in 3 to 5 years old, that of Enteromonas hominis (12.8%) in 6 to 9 years old. The predominant helminth was Ancylostoma duodenale, with the peak prevalence (65.2%) in patients older than 18 years, followed by Ascaris lumbricoides and Strongyloides stercoralis. Almost half of children patients under 6 was infected with at least two species of parasites, patients over 6 were infected simultaneously with two or more intestinal parasites in an absolute majority of cases. In Takeo preschool and school children the spectrum of diagnosed protozoan and helminth species was somewhat narrower than seen in hospital patients, but their prevalence rates were higher, except for the flagellate Pentatrichomonas hominis. The highest prevalence rates recorded were for E. histolytica 29.5% (age category 10-14 years), for G. lamblia 34.8% (age category 6-9 years), for P. hominis 19.3% (age category 3-5 years), for E. hominis 10.5% (age category 3-5 years), for A. duodenale 85.9% (age category 15-18 years), for A. lumbricoides 26.1% (age category 6-9 years), and for S. stercoralis 18.8% (age category 6-9 years). As many as 70% of children at the age between 6 and 15 years were simultaneously infected with two or three species of intestinal parasites.

Článek

Active control of congenital toxoplasmosis in the population

In 2.8/1000 pregnancies the infection was contracted shortly before pregnancy, one third of them ended ...

Central European journal of public health. 1998 Nov ; 6 (4) : 265-8.

Cent Eur J Public Health
ISSN 1210-7778
Zdroj

Repeated serological investigations (CFT, IFT, ELISA) of 50,000 pregnant women revealed that 5.1/1000 pregnancies in the Karviná district, Czech Republic are threatened by toxoplasmosis. In 2.8/1000 pregnancies the infection was contracted shortly before pregnancy, one third of them ended by spontaneous abortion. In this group the birth of a congenitally infected infant is rare. Primary infections of women who are already pregnant (2.3/1000 of pregnancies) are much more serious. This number comprises 1.2/1000 pregnancies with a spontaneous abortion and 1.2/1000 pregnancies leading to the delivery of a congenitally infected infant. By early detection, i.e. repeated serological examinations in all pregnancies, and by treatment of patients with Toxoplasma infections this hazard can be reduced substantially, i.e. to one eighth.

MeSH
kongenitální toxoplazmóza prevence a kontrola MeSH
lidé MeSH
novorozenec MeSH
parazitární komplikace těhotenství epidemiologie MeSH
plošný screening MeSH
protilátky protozoální krev MeSH
séroepidemiologické studie MeSH
těhotenství MeSH
Toxoplasma imunologie MeSH
toxoplazmóza epidemiologie přenos MeSH
vertikální přenos infekce prevence a kontrola MeSH
zvířata MeSH
Check Tag
lidé MeSH
novorozenec MeSH
těhotenství MeSH
ženské pohlaví MeSH
zvířata MeSH
Publikační typ
časopisecké články MeSH
Geografické názvy
Česká republika epidemiologie MeSH
Názvy látek
protilátky protozoální MeSH

Článek

Toxoplasmic antibodies in sera of HIV-infected persons

The sera of 67 HIV-infected persons without clinical signs of Toxoplasma gondii infection and sera of ...

Folia parasitologica. 1992 ; 39 (2) : 177-80.

Folia Parasitol (Praha)
ISSN 0015-5683
Zdroj

The sera of 67 HIV-infected persons without clinical signs of Toxoplasma gondii infection and sera of 777 immunocompetent persons from three distinct regions of Czechoslovakia were examined for the presence of toxoplasmic antibodies using the complement-fixation test (CFT). Additionally Toxoplasma positive HIV+ individuals were re-examined for the presence of IgG and IgM toxoplasmic antibodies by ELISA methods. Results show that overall prevalence of toxoplasmic antibodies is not significantly greater in HIV-positive subjects (29.8%) than in the general population (26.1%). Similarities between these two tested groups were also documented by a close correlation of their geometrical means of titres (13.9 versus 14.5). All 20 HIV-infected patients who were positive in CFT were positive in ELISA IgG reaction, and none in ELISA IgM reaction. The detected antibody levels were suggestive of a latent Toxoplasma infection only. But because of the risk of the infection reactivation all of these patients should be attended to on a systematic basis.

MeSH
dítě MeSH
dospělí MeSH
ELISA MeSH
HIV infekce komplikace MeSH
imunoglobulin G krev MeSH
imunoglobulin M krev MeSH
imunokompetence MeSH
kojenec MeSH
komplement fixační testy MeSH
lidé středního věku MeSH
lidé MeSH
mladiství MeSH
předškolní dítě MeSH
prevalence MeSH
protilátky protozoální krev MeSH
Toxoplasma imunologie MeSH
toxoplazmóza komplikace epidemiologie MeSH
zvířata MeSH
Check Tag
dítě MeSH
dospělí MeSH
kojenec MeSH
lidé středního věku MeSH
lidé MeSH
mladiství MeSH
předškolní dítě MeSH
zvířata MeSH
Publikační typ
časopisecké články MeSH
Geografické názvy
Československo epidemiologie MeSH
Názvy látek
imunoglobulin G MeSH
imunoglobulin M MeSH
protilátky protozoální MeSH

Článek

Evaluation of a commercial IgE ELISA in comparison with IgA and IgM ELISAs, IgG avidity assay and complement fixation for the diagnosis of acute toxoplasmosis

five serological tests to differentiate among patients with acute or latent toxoplasmosis and non-infected ...

Clinical microbiology and infection. 2007 Jan ; 13 (1) : 40-7.

Clin Microbiol Infect
ISSN 1198-743X
Zdroj

A panel of sera from patients with known case histories representative of acute toxoplasmosis (primarily lymphadenopathy, n = 106), latent toxoplasmosis (asymptomatic, n = 368) and negative samples (n = 54) was used to evaluate the capacity of five serological tests to differentiate among patients with acute or latent toxoplasmosis and non-infected individuals. Positive IgA, IgE and IgM ELISA results and low IgG avidity and complement fixation test (CFT) titres of >or=256 were considered to be indicative of acute toxoplasmosis. The most sensitive methods were IgM ELISA (98.1%) and CFT (97.1%), albeit with low specificity (65.0% and 64.5%, respectively) and positive predictive values (43.3% and 42.7%, respectively). IgG avidity assay and IgE ELISA had the highest specificity (97.7% and 91.7%, respectively) and the highest positive predictive values (89.4% and 75.6%, respectively). The best association between serological results and clinical findings was obtained with IgE ELISA (86%, as expressed via Youden's index). In a subset of 259 samples categorised by the period between the onset of clinical symptoms and sampling, >50% of patients had enlarged lymph nodes for <4 months, despite a broad range of differences. However, IgM remained positive for 12-18 months, IgA for 6-9 months and IgE for 4-6 months. IgG avidity remained low for a maximum of 4 months, after which avidity increased despite the persistence of enlarged lymph nodes and a positive IgE assay. Detection of IgE appears to be a highly specific test for confirming the acute nature of Toxoplasma infections that have been detected by other sensitive methods.

Článek

Epidémiologie des parasitoses intestinales au Laos (avec dosage des anticorps antiamibiens)
[Epidemiology of intestinal parasitosis in Laos (with anti-amoebic antibody levels)]

predominant species is Opisthorchis complex with the peak in age group greater than 20 years and infected ...

Bulletin de la Societe de pathologie exotique (1990). 1991 ; 84 (2) : 184-93.

Bull Soc Pathol Exot
ISSN 0037-9085
Zdroj

The overall prevalence rate of the intestinal parasites in Laos ranges from 76.8% to 95.7% depending on living conditions. The predominant species is Opisthorchis complex with the peak in age group greater than 20 years and infected in one village all men over 20 years. Unusually high frequency demonstrated Sarcocystis hominis as well as Taenia sp. with the culmination of infection among the adults. The habit of eating raw flesh of fish, beef and pork is responsible for the spreading of these three zoonotic parasitoses. The intimate coexistence between the domestic animals and man explains the prevalence of Trichostrongylus sp. Low infection rate as E. histolytica have been found as well of low level of antiamoebic antibodies. The multiple infections raise with the age and the predominant participation of helminths was demonstrated.

Publikováno

Filtry

PROTOZOAN INFECTIONS/in infant and child Dotaz Zobrazit nápovědu

PROTOZOAN INFECTIONS/in infant and child Dotaz Zobrazit nápovědu

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