Displaying publications 21 - 40 of 79 in total

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  1. Some notes on a hookworm and roundworm survey
    Wolfe EDB
    Malayan Medical Journal, 1936;11:224-5.
    Matched MeSH terms: Ascariasis
  2. Fulltext A case report of severe Ascariasis infection in systemic lupus erythematosus patient
    Tan J. Y. S., R. Surendran, Mohd Noh Malehah, Shaila Kabir, Chong Y. Y. Eleen
    Malaysian Journal of Medicine and Health Sciences, 2019;15(106):53-53.
    MyJurnal
    Introduction: Ascariasis is a parasitic infection, which commonly affects immunocompromised patients. Most pa-tients remained asymptomatic during the early larval migration stage and respond well with conventional anti-hel-minthic drugs. Previous literature had reported symptomatic Ascaris infection mimicking bacterial pneumonia and the typical eosinophilia found in Loeffler syndrome was absent in patients on corticosteroids. Thus, a high index of suspicion for ascariasis is needed for immunosuppressed patients presented with infection. We present here a case of severe ascariasis infection in a systemic lupus erythematosus patient. Case description: A 16-year-old boy presented with fever, generalized maculopapular rash associated with neutropenia and thrombocytopenia. He was treated initially as Dengue Fever initially. However his symptoms did not resolve at even day 14 of admission. On further assessment, we were convinced he has SLE based upon presence of malar rash, oral ulcers, urinary protein-uria, persistent leucopenia, thrombocytopenia with low complements and ANA positive. He was promptly started on IV hydrocortisone. He showed a good progress in the first few days. On day 5 of admission, he coughed out a round worm which later identified as Ascarisis lumbricoides. He was started on Albendazole. Unfortunately he developed hemoptysis and respiratory compromisation where he required intubation. Post intubation he went into cardiac arrest, which required CPR. Following that event, his condition further deteriorated with multi organ failure. He succumbed to his illness three days later. Conclusion: Immunocompromised patients are prone to opportunistic infections including parasitic infections. we present here a case of ascariasis in an SLE patient who unfortunately succumbed to the illness. Due to the variable clinical symptoms that mimic other infections, screening for parasitic infections needs to be considered especially if the patients do not respond to antibiotics and routine treatments.
    Matched MeSH terms: Ascariasis
  3. Biliary ascariasis: a wandering worm
    Lim, C.B., Munirah, A., Alias, M., Nandy, A.K., Thamby Dorai, C.R.
    Malaysian Journal of Paediatrics and Child Health, 2000;12(1):68-71.
    MyJurnal
    Ascaris lumbricoides infection usually results in mild gastrointestinal symptoms. However, heavy worm load infections can cause major complications. In one-third of the latter cases, the worms enter the bile duct causing cholangitis, biliary colic and acute pancreatitis. We describe an eleven-year-old Indian boy who presented with high grade fever, vomiting of worms, jaundice and right hypochondria! pain. Examination revealed an ill, malnourished and jaundiced child. His abdomen was tender with positive Murphy's sign and hepatomegaly. Urgent ultrasound showed hepatomegaly with dilated intrahepatic and common bile ducts (CBD). There were tubular echogenic filling defects with central sonolucency along the long axis of the CBD. He was fasted, started on intravenous fluids and broad spectrum antibiotics. As there was no improvement after 24 hours, endoscopic retrograde cholangio-pancreaticography (ERCP) was performed: it showed worms in the CBD. A stent was inserted to decompress the bile ducts and to ensure biliary drainage. The patient improved, the fever settled, jaundice resolved, serum amylase and transaminase levels normalised. It was planned to remove the stent at a later date.
    Matched MeSH terms: Ascariasis
  4. Fulltext Helminthiasis among primary rural school children in Bachok, Kelantan
    Anees, A.H., Zulkifli, A., Azmi, A., Syukri, M.
    Malaysian Journal of Public Health Medicine, 2003;3(2):19-22.
    MyJurnal
    A cross-sectional study on helminthiasis among rural primary schoolchildren aged 9 to 10 years Bachok, Kelaritan was perfumed. A total of 680 schoolchildren participated in the study. Stool specimens were examined for the presence of the ova of Ascaris lumbricoides, Trichuris trichiura and hoolcwonn. The worm load was then measured using the modified Stoll`s volumetric dilution
    technique. The overall prevalence of helminthiasis was 77 .2%. Trichuris trichiura were the commonest type of heminth noted - 66.8%, compared with Ascaris lumlrricoides (49.7%) and hookworm (1.8%). Mixed infections with Ascaris lumlyricoides and Trichuris trichiura was the commonest type of infection 249(41 .5%) . For Ascaris lumbncoides, 34.6% had mild and 5 I .3% had moderate worm load while for Trichurb trichiura, 66.5% had mild and 30.8 % had moderate worm load. Only 14.1% and 2.7% 4 of the schoolchildren had a heavy load of Ascaris lumlwicoides and Trichuris trichiura respectively. All the schookhildren with hookworm were only mildly infected. Targeted mass treatment for rural Mahysian schoolchildren is still essential, especially in areas where poverty and malnutrition are still prevalent.
    Matched MeSH terms: Ascariasis
  5. Fulltext Biliary ascariasis from a rural setting: a case study
    Sai Sanjeev M., Lum, L.C.
    Medicine & Health, 2012;7(2):102-106.
    MyJurnal
    Ascariasis is a common helminthic infestation in Malaysia, particularly in rural settings. Ascariasis lumbricoides normally lives in the upper small bowel without causing symptoms. Complications arise when these worms migrate into the bile duct (biliary ascariasis). A case of biliary ascariasis presenting as biliary colic is described. Patient presented with 2 days duration of right upper quandrant pain at the district hospital. Initial investigations were suggestive of acute cholecystitis and patient was treated with empirical antibiotics. However, due to worsening symptoms, she was transferred to the nearest tertiary setting. The diagnosis of helminthic biliary infestation was established using both ultrasound of the hepato-biliary system (HBS), CT-Scan abdomen and endoscopic retrograde cholangio-pancreatography (ERCP). Endoscopic removal of the worm led to rapid resolution of symptoms and patient was discharged home well.
    Matched MeSH terms: Ascariasis
  6. Fulltext Ascariasis among orang asli children at pos lenjang, Pahang, malaysia
    Hartini, Y., Mohamed Kamel, A.G.
    Medicine & Health, 2010;5(2):60-65.
    MyJurnal
    A cross-sectional study was carried out in 2006 to determine the prevalence of Ascaris lumbricoides infection among Orang Asli (aborigines) children in Pos Lenjang, Pahang. A total of 71 faecal samples were collected from the children (40 girls and 31 boys) aged between 1-12 years. The samples were examined for the presence of the ova of A. lumbricoides using direct faecal smear and formalin-ether concentration techniques. 42.3%. The prevalence of A. lumbricoides infection was found to be slightly higher in males (45.2%) compared to females (40%) (p>0.05). The school-aged children showed higher prevalence of infection (48.6%) as compared to the preschool children (35.3%) (p
    Matched MeSH terms: Ascariasis
  7. Fulltext Geographical distribution of soil transmitted helminths and the effects of community type in South Asia and South East Asia - A systematic review
    Silver ZA, Kaliappan SP, Samuel P, Venugopal S, Kang G, Sarkar R, et al.
    PLoS Negl Trop Dis, 2018 01;12(1):e0006153.
    PMID: 29346440 DOI: 10.1371/journal.pntd.0006153
    BACKGROUND: Soil-transmitted helminth (STH) infections are among the most prevalent neglected tropical diseases (NTD) worldwide. Since the publication of the WHO road map to combat NTD in 2012, there has been a renewed commitment to control STH. In this study, we analysed the geographical distribution and effect of community type on prevalence of hookworm, Trichuris and Ascaris in south Asia and south east Asia.

    METHODOLOGY: We conducted a systematic review of open-access literature published in PubMed Central and the Global Atlas of Helminth Infection. A total of 4182 articles were available and after applying selection criteria, 174 studies from the region were retained for analysis.

    PRINCIPAL FINDINGS: Ascaris was the commonest STH identified with an overall prevalence of 18% (95% CI, 14-23%) followed by Trichuris (14%, 9-19%) and hookworm (12%, 9-15%). Hookworm prevalence was highest in Laos, Vietnam and Cambodia. We found a geographical overlap in countries with high prevalence rates for Trichuris and Ascaris (Malaysia, Philippines, Myanmar, Vietnam and Bangladesh). When the effect of community type was examined, prevalence rates of hookworm was comparable in rural (19%, 14-24%) and tribal communities (14%, 10-19%). Tribal communities, however, showed higher prevalence of Trichuris (38%, 18-63%) and Ascaris (32%, 23-43%) than rural communities (13%, 9-20% and 14%, 9-20% respectively). Considerable between and within country heterogeneity in the distribution of STH (I2 >90%) was also noted. When available data from school aged children (SAC) were analysed, prevalence of Ascaris (25% 16-31%) and Trichuris (22%, 14-34%) were higher than among the general population while that of hookworm (10%, 7-16%) was comparable.

    CONCLUSIONS/SIGNIFICANCE: Our analysis showed significant variation in prevalence rates between and within countries in the region. Highlighting the importance of community type in prevalence and species mix, we showed that tribal and rural communities had higher hookworm infections than urban communities and for ascariasis and trichuriasis, tribal populations had higher levels of infection than rural populations. We also found a higher prevalence of ascariasis and trichuriasis in SAC compared to the general population but comparable levels of hookworm infections. These key findings need to be taken into account in planning future MDA and other interventions.

    Matched MeSH terms: Ascariasis/epidemiology*
  8. Fulltext Epidemiological surveys of, and research on, soil-transmitted helminths in Southeast Asia: a systematic review
    Dunn JC, Turner HC, Tun A, Anderson RM
    Parasit Vectors, 2016 Jan 27;9:31.
    PMID: 26813007 DOI: 10.1186/s13071-016-1310-2
    Soil-transmitted helminth (STH) infections of humans fall within the World Health Organization's (WHO) grouping termed the neglected tropical diseases (NTDs). It is estimated that they affect approximately 1.4 billion people worldwide. A significant proportion of these infections are in the population of Southeast Asia. This review analyses published data on STH prevalence and intensity in Southeast Asia over the time period of 1900 to the present to describe age related patterns in these epidemiological measures. This is with a focus on the four major parasite species affecting humans; namely Ascaris lumbricoides, Trichuris trichiura and the hookworms; Necator americanus and Ancylostoma duodenale. Data were also collected on the diagnostic methods used in the published surveys and how the studies were designed to facilitate comparative analyses of recorded patterns and changes therein over time. PubMed, Google Scholar, EMBASE, ISI Web of Science, Cochrane Database of Systematic Reviews and the Global Atlas of Helminth Infections search engines were used to identify studies on STH in Southeast Asia with the search based on the major key words, and variants on, "soil-transmitted helminth" "Ascaris" "Trichuris" "hookworm" and the country name. A total of 280 studies satisfied the inclusion criteria from 11 Southeast Asian countries; Brunei, Cambodia, Indonesia, Lao People's Democratic Republic (Lao PDR), Malaysia, Myanmar, Philippines, Singapore, Thailand, Timor-Leste and Vietnam. It was concluded that the epidemiological patterns of STH infection by age and species mix in Southeast Asia are similar to those reported in other parts of the world. In the published studies there were a large number of different diagnostic methods used with differing sensitivities and specificities, which makes comparison of the results both within and between countries difficult. There is a clear requirement to standardise the methods of both STH diagnosis in faecal material and how the intensity of infection is recorded and reported in future STH research and in monitoring and evaluation (M&E) of the impact of continuing and expanding mass drug administration (MDA) programmes.
    Matched MeSH terms: Ascariasis/epidemiology
  9. Fulltext Expression of Ascaris lumbricoides putative virulence-associated genes when infecting a human host
    Mohd-Shaharuddin N, Lim YAL, Ngui R, Nathan S
    Parasit Vectors, 2021 Mar 23;14(1):176.
    PMID: 33757548 DOI: 10.1186/s13071-021-04680-y
    BACKGROUND: Ascaris lumbricoides is the most common causative agent of soil-transmitted helminth infections worldwide, with an estimated 450 million people infected with this nematode globally. It is suggested that helminths are capable of evading and manipulating the host immune system through the release of a spectrum of worm proteins which underpins their long-term survival in the host. We hypothesise that the worm overexpresses these proteins when infecting adults compared to children to cirvumvent the more robust defence mechanisms of adults. However, little is known about the parasite's genes and encoded proteins involved during A. lumbricoides infection. Hence, this study was conducted to assess the expression profile of putative virulence-associated genes during an active infection of adults and children.

    METHODS: In this study, quantitative PCR was performed to evaluate the expression profile of putative virulence-associated genes in A. lumbricoides isolated from infected children and adults. The study was initiated by collecting adult worms expelled from adults and children following anthelminthic treatment. High-quality RNA was successfully extracted from each of six adult worms expelled by three adults and three children, respectively. Eleven putative homologues of helminth virulence-associated genes reported in previous studies were selected, primers were designed and specific amplicons of A. lumbricoides genes were noted. The expression profiles of these putative virulence-associated genes in A. lumbricoides from infected adults were compared to those in A. lumbricoides from infected children.

    RESULTS: The putative virulence-associated genes VENOM, CADHERIN and PEBP were significantly upregulated at 166-fold, 13-fold and fivefold, respectively, in adults compared to children. Conversely, the transcription of ABA-1 (fourfold), CATH-L (threefold) and INTEGRIN (twofold) was significantly suppressed in A. lumbricoides from infected adults.

    CONCLUSIONS: On the basis of the expression profile of the putative virulence-associated genes, we propose that the encoded proteins have potential roles in evasion mechanisms, which could guide the development of therapeutic interventions.

    Matched MeSH terms: Ascariasis/immunology; Ascariasis/parasitology*
  10. Soil-transmitted helminthiasis: a critical but neglected factor influencing school participation of Aboriginal children in rural Malaysia
    Ahmed A, Al-Mekhlafi HM, Azam MN, Ithoi I, Al-Adhroey AH, Abdulsalam AM, et al.
    Parasitology, 2012 May;139(6):802-8.
    PMID: 22310239 DOI: 10.1017/S003118201100237X
    Soil-transmitted helminthiasis (STH), among the most common neglected tropical diseases, is a major public health problem in Malaysia with a possible impact on the nutritional status and school participation of rural children. This study was carried out among Aboriginal schoolchildren, living in an endemic area for STH in Malaysia, to determine the possible relationship between intestinal helminthiasis and school absenteeism. We also evaluated whether successful treatment of the infection will affect school attendance among the subjects. Stool analysis revealed that more than 90% of the subjects were infected with at least 1 helminth species, with Ascaris lumbricoides and Trichuris trichiura infections being most prevalent. Infection of moderate-to-heavy worm burdens, low level of fathers' education and anaemia were identified as the significant predictors of high absenteeism among the subjects (P<0·05). Following treatment of the infected children, it was found that school absenteeism was reduced significantly (P<0·01). In conclusion, STH continues to have significant impacts on public health, particularly in rural communities with a negatively significant effect on the school participation of Aboriginal children. A school-based de-worming programme should be introduced and incorporated in the current educational assistance targeted towards the Aboriginal communities, under the auspices of the government.
    Matched MeSH terms: Ascariasis/epidemiology; Ascariasis/parasitology; Ascariasis/prevention & control; Ascariasis/transmission
  11. The effect of repeated chemotherapy on age-related predisposition to Ascaris lumbricoides and Trichuris trichiura
    Chan L, Kan SP, Bundy DA
    Parasitology, 1992 Apr;104 ( Pt 2):371-7.
    PMID: 1594301
    This study examines the persistence of predisposition to Ascaris lumbricoides and Trichuris trichiura during repeated chemotherapy in an urban community in Kuala Lumpur, Malaysia. Significant predisposition was observed over 2 periods of reinfection with and without age-standardization of data. Analysis of different age groups indicated that predisposition was most strongly detectable in the younger age classes. The intensities of infection with both parasites were strongly correlated at each cycle of intervention, suggesting that individuals were similarly predisposed to both species.
    Matched MeSH terms: Ascariasis/drug therapy*; Ascariasis/epidemiology
  12. Fulltext Prevalence and risk factors of geohelminthiasis among the rural village children in Kota Marudu, Sabah, Malaysia
    Lim-Leroy A, Chua TH
    PLoS One, 2020;15(9):e0239680.
    PMID: 32986746 DOI: 10.1371/journal.pone.0239680
    Geohelminthiasis is a worldwide problem, especially in low-income countries. Children from rural areas and those living in poverty, lacking basic health amenities and having poor environmental sanitation are likely to be affected. Adverse effects such as anemia, protein malnutrition, colitis are common which can affect both the children's physical and mental growing development. A cross-sectional study on geohelminthiasis was conducted among children from 238 households in 13 villages in Kota Marudu of northern Sabah, East Malaysia. The study involved interviewing villagers using questionnaires to collect demographic and socio-economic data, getting faecal samples from the children, collecting soil samples and identifying parasite eggs with microscopy and molecular methods. A total of 407 children (6 months-17 years old) enrolled in the study. Geohelminthiasis was detected in the faecal samples of children from 54% (7/13) of the villages with mean prevalence of infection per village of 9.0% (0%-34.9%). On a household basis, 18% (43/238) of the households sampled had infected children, with mean prevalence rate per household of 11% (0%-43%). The prevalence was for Ascaris lumbricoides: 9.6% (39/407), Trichuris trichiura: 2.7% (11/407) and hookworms (Necator americanus and Ancylostoma sp.): 2.7% (11/407). The overall mean infection rate of the children examined was 14.3%. Significantly higher prevalence was recorded for the children of mothers who did not have any formal education (p = 0.003); household income of less than USD119 (RM500) (p<0.001); children from homes without proper sanitation facilities (p<0.001); children who usually go about barefoot (p<0.001) and not washing feet before entering the house (p = 0.017). Soil samples were found to have geohelminth eggs or larvae which could be due to unhygienic sanitation practices. This study shows the geohelminthiasis is prevalent in the villages, and the risk factors are lack of maternal education, low income, poor sanitation facilities and irregular deworming practice. Expanding deworming coverage in the study region may help reduce the worm infections in these communities, so that the mental and physical development of the children would not be affected by geohelminthiasis. The data on the prevalence of geohelminthiasis in this study would contribute to better public health monitoring and operation to reduce the infection in rural areas.
    Matched MeSH terms: Ascariasis/epidemiology*; Ascariasis/parasitology
  13. Fulltext Biliary ascariasis and extrahepatic cholangiocarcinoma: a report of two cases
    Lim KG, Sellaiah SP
    Singapore Med J, 1994 Aug;35(4):400-2.
    PMID: 7899902
    We report two cases of rural Malay women in Perak, Malaysia, with extrahepatic cholangiocarcinoma and coexistent biliary ascariasis. In both cases, the narrowed bile duct may have resulted in inability of the migratory nematode to return to the gastrointestinal tract. It may be reasonable, also, to postulate that chronic biliary tract infestation by Ascaris lumbricoides may have contributed to the development of cholangiocarcinoma; a situation similar to that observed in liver fluke infestation.
    Matched MeSH terms: Ascariasis/complications*
  14. Fulltext Ascarid worms causing recurrent cholangitis in a patient with an obstructing ampullary tumour
    Khan TF, Zahari A, Sherazi ZA, Visvanathan R
    Singapore Med J, 1993 Oct;34(5):462-3.
    PMID: 8153702
    This is a report of a 57-year-old Malay lady who presented with recurrent episodes of cholangitis and septicaemia. A dilated biliary tree caused by a stenosing periampullary tumour was found to contain adult round worms. A pancreatico-duodenectomy was performed following biliary decompression. Ascarid worms are a rare cause of cholangitis in malignant biliary obstruction.
    Matched MeSH terms: Ascariasis/complications*
  15. Should postpapillotomy screening for Ascaris lumbricoides infection be routine in communities endemic for ascariasis?
    Raj SM, Radzi M
    Am J Gastroenterol, 1999 Aug;94(8):2329.
    PMID: 10445590
    Matched MeSH terms: Ascariasis/diagnosis*; Ascariasis/therapy
  16. Patterns and Risk Factors of Soil-Transmitted Helminthiasis Among Orang Asli Subgroups in Peninsular Malaysia
    Ngui R, Aziz S, Chua KH, Aidil RM, Lee SC, Tan TK, et al.
    Am J Trop Med Hyg, 2015 Aug;93(2):361-70.
    PMID: 26055746 DOI: 10.4269/ajtmh.13-0677
    A cross-sectional study was conducted to provide comprehensive data on the patterns and associated risk factors of soil-transmitted helminth (STH) infections among five Orang Asli subgroups in Peninsular Malaysia. The overall prevalence of STH infections was 59.9% (95% confidence interval [CI] = 56.1-63.7%). Trichuris trichiura (54.3%; 95% CI = 50.4-58.2%) was the predominant species followed by Ascaris lumbricoides (26.7%; 95% CI = 23.3-30.1%) and hookworm (9.1%; 95% CI = 6.9-11.3%). This study showed diversity for STH infections by subgroup with poverty and personal sanitary behavior as important risk factors for infection. Risk profile analyses indicating that Orang Kuala subgroup who has a generally well-developed infrastructure and better quality of life had a low rate of infection. There is a need for poverty reduction and promotion of deworming programs along with mass scale campaigns to create awareness about health and hygiene to reduce STH infections.
    Matched MeSH terms: Ascariasis/epidemiology*
  17. Fecal occult blood testing on Trichuris-infected primary school children in northeastern peninsular Malaysia
    Raj SM
    Am J Trop Med Hyg, 1999 Jan;60(1):165-6.
    PMID: 9988342
    Stool specimens of 104 primary schoolchildren (mean+/-SD age = 8.2+/-0.3 years) were examined for helminth eggs and for occult blood to investigate the possibility that trichuriasis causes occult intestinal bleeding in the absence of the overt Trichuris dysentery syndrome. A commercially available guaiac test was used to detect fecal occult blood. Sixty-one children had Trichuris infection, 11 of whom had heavy infections (> 10,000 eggs per gram of feces [epg]), and 53 had Ascaris infections. No hookworm infection was detected. Baseline screening yielded only one weakly positive occult blood test result in a child with a light (800 epg) Trichuris infection. Serial stool occult blood testing on the 11 subjects with heavy trichuriasis and 8 uninfected controls yielded a single weakly positive result in the control group. The results provide no evidence that trichuriasis predisposes to significant occult gastrointestinal bleeding in children in the absence of the dysenteric syndrome.
    Matched MeSH terms: Ascariasis/epidemiology
  18. Albendazole, an effective single dose, broad spectrum anthelmintic drug
    Ramalingam S, Sinniah B, Krishnan U
    Am J Trop Med Hyg, 1983 Sep;32(5):984-9.
    PMID: 6625078
    Albendazole, a new anthelmintic drug was evaluated in Malaysia in 91 patients, with single or mixed infections of Ascaris, Trichuris, and hookworm. Albendazole was administered as a single dose of 400 mg, 600 mg, or 800 mg. The cure rate for Ascaris at all three doses was 100% at days 14 and 21 post-treatment; for hookworm it was 98.8%, 100% and 98%, respectively, at day 14 and 68.8%, 100% and 84%, respectively, at day 21; for Trichuris it was 31.2%, 57.1% and 42.3%, respectively, at day 14 and 27.3%, 60.9% and 48.0%, respectively, at day 21. The egg reduction rate at day 21 was 100% at all three doses for Ascaris, 94.5%, 100% and 96.1%, respectively, for hookworm; and 39.2%, 85.1% and 72.8%, respectively, for Trichuris. There were no side effects, and biochemical examination of blood and urine did not indicate any unfavourable changes. Based on this trial, the recommended dosage for Ascaris and hookworm is a 400 mg single dose, and for Trichuris is a 600 mg single dose. Albendazole appears to be more effective than other available anthelmintic drugs.
    Matched MeSH terms: Ascariasis/complications; Ascariasis/drug therapy*
  19. Severe infection with Trichuris trichiura in Malaysian children. A clinical study of 30 cases treated with stilbazium iodine
    Kamath KR
    Am J Trop Med Hyg, 1973 Sep;22(5):600-5.
    PMID: 4729740
    Matched MeSH terms: Ascariasis/complications
  20. Fulltext A pentaplex real-time polymerase chain reaction assay for detection of four species of soil-transmitted helminths
    Basuni M, Muhi J, Othman N, Verweij JJ, Ahmad M, Miswan N, et al.
    Am J Trop Med Hyg, 2011 Feb;84(2):338-43.
    PMID: 21292911 DOI: 10.4269/ajtmh.2011.10-0499
    Soil-transmitted helminth infections remain a major public health burden in low- and middle-income countries. The traditional diagnosis by microscopic examination of fecal samples is insensitive and time-consuming. In this study, a pentaplex real-time polymerase chain reaction (PCR) was evaluated for the simultaneous detection of Ancylostoma, Necator americanus, Ascaris lumbricoides, and Strongyloides stercoralis. The results were compared with those obtained by conventional parasitological diagnostic methods. Real-time PCR was positive in 48 of 77 samples (62.3%) and microscopic examination was positive in six samples (7.8%) only (P < 0.05). In conclusion, the real-time PCR assay described in this study provides a specific and sensitive diagnostic tool for the detection of these four helminth species in epidemiological studies and monitoring of treatment programs.
    Matched MeSH terms: Ascariasis/diagnosis*
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