Prevalence of intestinal parasitic infections in cases of diarrhoea among school children attending a tertiary care hospital: a two year study

Ravi Kumar Tenali, Naveen Kumar Badri, Jithendra Kandati, Munilakshmi Ponugoti


Background: Globally every year 1.7 billion cases of diarrhoea are registered as per the WHO report 2017. Intestinal parasitic infections [IPI] are one of the top ten major public health problems in developing countries with an estimated prevalence of 30-60% in developing countries compared to 3% in developed countries. School age children are the common vulnerable group with the highest prevalence and infection intensities. The objective of the present study is to study the prevalence of parasitic infections in school children as a causative factor for diarrhoea and associated risk factors involved with relation to their hygiene and socio demographic characters.

Methods: A cross sectional study was conducted for a period of two years from January 2015 to December 2016 and stool specimens from the children aged 5-18 years suffering from diarrhoea were screened for parasitic infections following standard guidelines and as per the ethical committee guidelines. The socio demographic characters, risk factors and hygienic characters of the cases were noted from the parents or guardians or children in a separate predesigned questionnaire sheet. Data was analyzed using SPSS software version 13 and P value<0.05 was considered significant.

Results: T The prevalence of parasitic infections in the Present study was 22.95% and males were more common. 8-11 years was the most common age group and mean age was 11.6±1.8 years. Statistically significant association was found with hand washing before meals, socio economic status, and method of hand washing after defecation. Entamoeba histolytica was the major parasitic pathogen followed by Ascaris lumbricoides. Other parasites were Giardia lamblia, Ancylostoma duodenale, Cryptosporidium, Isospora, Enterobius and Trichuris trichura.  

Conclusions: There is lack of awareness regarding dog bite and its management among the rural population.


Ascaris lumbricoides, Cryptosporidium, Entamoeba histolytica, Isospora, Intestinal parasitic infections

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World Health Organization. Intestinal protozoan and helminthic infections. Tech Rep No. 666. Geneva: WHO;1981.

WHO (2006) Geographical distribution and useful facts and stats. Geneva.

Garzon M. Parasites- A Holistic Approach. In: Associates NIH, editor, Capital University of Integrated Medicine.2003

UNICEF, United Nations Secretary General’s Advisory Board on Water and Sanitation, Drinking Water and Sanitation Situation in the Arab States. 2006 a regional perspective based on data from the WHO/UNICEF Joint Monitoring Programme for Water Supply and Sanitation; 2008.

Clinical and Laboratory Standards Institute (CLSI). Procedures for the Recovery and Identification of Parasites from the Intestinal Tract; Approved Guideline 2nd Ed. CLSI document M28-A2. Clinical and Laboratory Standard Institute; Wayne, Pennsylvania, 2005

Mahraj V, Hatcher J, Akhtar S, Rafique G, Beg MA. Prevalence and factors associated with intestinal parasitic infections among children in an urban slum of Karchi. PLOS one. 2008;3:e3680.

Okyay P, Ertug S, Gultekin B, onen O, Beser E. Intestinal parasites prevalence and related factors in school children, a western city sample–Turkey, BMC pub Health. 2004;4:64-9.

Sayyari AA, Imanzadeh F, Bagheri Yazdi SA, Karami H, Yaghoobi M. Prevalence of intestinal parasitic infections in the Islamic Republic of Iran. Eastern Mediterranean Health Journal 2005;11:377-83.

Singh C, Zargar SA, Masoodi I, Shoukat A, Ahmad B. Predictors of intestinal parasitosis in school children of Kashmir: a prospective study. Trop Gastroenterol. 2010;31:105-7.

Singh S, Raju GV, Samantray JC. Parasitic gut flora in a North Indian population with gastrointestinal symptoms. Trop Gastroenterol. 1993;14:104-8.

Bansal D, Sehgal R, Bhatti HS, Shrivastava SK, Khurana S, Mahajan RC, et al. Intestinal parasites and intra-familial incidence in a low socio-economic area of Chandigarh (North-India). Nepal Medic College J.2004;6(1):28-31.

Subbannayya K, Babu MH, Kumar A, Rao TS, Shivananda PG. Entamoeba histolytica and other parasitic infestations in South Kanara district, Karnataka. J Communi Dis. 1989;21:207-13.

Chandrashekhar TS, Joshi HS, Gurung M, Subba SH, Rana MS,Shivananda PG. Prevalence and distribution of intestinal infestations among school children in Kaski District, WesternNepal. J Med Biomed Res. 2005;4:78-82.

Östan I, Kilimciolu AA, Girginkardeler N, Ozyurt BC, Limoncu ME, Ok UZ. Health inequities: lower socio-economic conditions and higher incidences of intestinal parasites. BMC Public Health. 2007;7:342-9.

Maia MM, Fausto MA, Vieira EL, Benetton ML, Carneiro M. Intestinal parasitic infection and associated risk factors, among children presenting at outpatient clinics in Manaus, Amazonas state, Brazil. Ann Trop Med Parasitol. 2009;103:583-91.

RaoVG, Aggrawal MC, Yadav R, Das SK, Sahare LK, Bondley MK, et al. Intestinal parasite infestations, anemia and under nutrition among tribal adolescents of Madhya Pradesh. Indian J Comm Med. 2003;28(1):26-9.

Thompsosn RC, Reynoldson JA, Mendis JH. Giardia and giardiais. Adv Parasitol. 1993; 32:71-160.

Nitin S, Venkatesh V, Husain N, Masood J, Agarwal GG. Overview of intestinal parasitic prevalence in rural and urban population in Lucknow, north India. J Communi Dis. 2007;39:217-23.

Wadood AU, Bari A Rehman AV, Kasim KF. Frequency of intestinal parasitic infections in children hospital Quetta. Pak J Med Res. 2005;44:87-8.