Objective:To investigate the prevalence of different intestinal parasitic infections among male primary schoolchildren in Al-Ahsa,Saudi Arabia,and to explore the possible relative socioeconomic, environmental and beha...Objective:To investigate the prevalence of different intestinal parasitic infections among male primary schoolchildren in Al-Ahsa,Saudi Arabia,and to explore the possible relative socioeconomic, environmental and behavioural sanitary correlates.Methods:A cross-sectional descriptive study was performed.A total of 1 289 male students aged from 7 to 12 years were selected randomly from 20 urban and 12 rural primary schools by multistage sampling method. Data collection was carried out by self administered questionnaire form to the parents/guardians of students and included inquires about socio-demographics,environmental conditions,and behavioural sanitary habits.Stool analysis was carried out to examine the presence of intestinal parasitic infections.Results:Overall prevalence of parasitic infections was 27.2%,more among rural students.Frequently encountered infections included Entamoeba histolytica/dispar(8.2%), Giardia lamblia(6.5%),Entamoeba coli(4.0%) and Enterobius vermicularis(1.6%).Logistic regression revealed that lower maternal educational level and occupational status,low family income,big family size,poor personal hygienic practices and positive history of previous intestinal infections among family members increased the likelihood of infections.Conclusions: Although of low magnitude,intestinal parasitic infections still represent a public health concern among male schoolchildren in Al-Ahsa region.Socio-demographic and poor personal hygienic habits are the main predictors for these infections.展开更多
Objective: To evaluate the prevalence and risk factors of intestinal parasitic infections in the urban and rural areas of Shushtar County,southwest Iran.Methods: A total of 1 008 fecal samples were analyzed by direct ...Objective: To evaluate the prevalence and risk factors of intestinal parasitic infections in the urban and rural areas of Shushtar County,southwest Iran.Methods: A total of 1 008 fecal samples were analyzed by direct smear examination,formalinether concentration,and Ziehl-Neelsen and trichrome staining; furthermore,PCR was used to distinguish Trichostrongylus and hookworm species based on 28 S rRNA gene.Results: Totally,16.0% cases tested positive,either with a pathogenic or a non-pathogenic parasite. Protozoa were detected in 14.0%,helminths in 1.0%,protozoa and helminth coinfections were detected in 0.3%,and co-infections of two protozoa were detected in 0.7% of cases. The most common protozoa and helminths were Giardia duodenalis(7.7%) and Trichostrongylus spp.(0.5%),respectively. Among five microscopy Trichostrongylus positive cases,Trichostrongylus culbriformis was successfully identified in three isolates by sequencing. In the rural areas,the prevalence of parasitic infection was higher(9.8%) than that in the urban areas(6.2%). A significant association was found between educational level,type of drinking water,animals contact,hand-washing,and clinical symptoms. Conclusions: This study indicates that intestinal parasitic infections remain as a public health priority in Shushtar County. It seems that drinking water and environmental sanitation are the main risk factors of parasitic infections in rural areas.展开更多
Introduction: Intestinal parasitic infections are among the most common communicable diseases worldwide, particularly in developing countries. Worldwide, about 3.5 billion people are affected, and 450 million are ill ...Introduction: Intestinal parasitic infections are among the most common communicable diseases worldwide, particularly in developing countries. Worldwide, about 3.5 billion people are affected, and 450 million are ill as a result of these infections, among whom, the majority are children. The objective of this study was to assess prevalence of intestinal parasites infection and associated risk factors among school children in Dagi primary school, ANRS, Ethiopia. Methods: Institutional-based cross-sectional study was conducted by involving 399 school children from 24 September to 19 October, 2012. Structured questionnaires were used to identify environmental, socio-demographic and behavioral factors and stool specimens were collected and examined for parasites using direct smear and formal-ether concentration technique. Data analysis was done by using SPSS version 15 statistical soft ware. Results: Eight species of intestinal parasites were identified with an overall prevalence of 77.9%. Students were infected with one or more intestinal parasites and the predominant parasite was hook worm, 94 (23.6%) followed by G. lamblia 91 (22.8%), E. histoltica 86 (21.6%) and Strongyloides 6 (1.5%). The presence of mixed parasitic infection was 106 (34.1%), double and triple infections were 97 (91.5%) and 9 (8.5%) respectively. Intestinal parasitic infection was higher in children whose fathers’ occupational status were farmers, who had unclean finger nails and who did not have the habit of wearing shoes (p parasites infection was an important public health problem among Dagi primary school children. Therefore, the local health office and other governmental and non-governmental organizations need to give attention to this serious problem of intestinal parasitic infection of school children.展开更多
Objective:To provide baseline information of parasitic infections in 3 suburban government schools,Lakhok subdistrict of Muang Pathum Thani,Thailand.Methods:This study was conducted between May-June 2010 using simple ...Objective:To provide baseline information of parasitic infections in 3 suburban government schools,Lakhok subdistrict of Muang Pathum Thani,Thailand.Methods:This study was conducted between May-June 2010 using simple direct smear and modified formalin ether and from a population of 1253 in 3 suburban government schools.Results:Total samples of 202registered and participated.The average of prevalence of infection from 3 schools was 13.9%,there were 13.7%,14.3%and 13.9%in N,S and R school,respectively with no significant difference between schools(P>0.05).The infection rates did not show significant difference between gender(P>0.05).The highest rate of infection was 20.4%in Pathom 2(8 years)students and the lowest was4%in Pathom 1(7 years)with statistically difference between age groups(P<0.05).The highest prevalence of pathogenic protozoa was Giardia lamblin(G.lamblia)which was found in 50%of infected cases,followed by 25%of Entamoeba Inictolytica(E.histolytica)and Blastocystis hominis(B.hominis).The highest prevalence of non-pathogenic protozoa was Endnhmat nano(E.nana)which was found in 88.9%,followed by 11.1%of Entamoeba coli(E.coli).Mixed infections between Blastocwstis hominis(B.hominis)and Endolimax nana(E.nana)were reported at 7.1%.The only helminthic infection found in this study area was hookworm,found in 1 student(3.8%).The formalin ether concentration technique showed a higher efficacy of detection(78%-100%)than the simple direct smear method(0%-50%).Conclusions:Surveillance of protozoan infections may need to be focused on suburban areas.展开更多
基金supported by a grant from the Deanship of Scientific Research,King Faisal University
文摘Objective:To investigate the prevalence of different intestinal parasitic infections among male primary schoolchildren in Al-Ahsa,Saudi Arabia,and to explore the possible relative socioeconomic, environmental and behavioural sanitary correlates.Methods:A cross-sectional descriptive study was performed.A total of 1 289 male students aged from 7 to 12 years were selected randomly from 20 urban and 12 rural primary schools by multistage sampling method. Data collection was carried out by self administered questionnaire form to the parents/guardians of students and included inquires about socio-demographics,environmental conditions,and behavioural sanitary habits.Stool analysis was carried out to examine the presence of intestinal parasitic infections.Results:Overall prevalence of parasitic infections was 27.2%,more among rural students.Frequently encountered infections included Entamoeba histolytica/dispar(8.2%), Giardia lamblia(6.5%),Entamoeba coli(4.0%) and Enterobius vermicularis(1.6%).Logistic regression revealed that lower maternal educational level and occupational status,low family income,big family size,poor personal hygienic practices and positive history of previous intestinal infections among family members increased the likelihood of infections.Conclusions: Although of low magnitude,intestinal parasitic infections still represent a public health concern among male schoolchildren in Al-Ahsa region.Socio-demographic and poor personal hygienic habits are the main predictors for these infections.
基金supported by the Infectious and Tropical Diseases Research Center,Health Research Institute,Ahvaz Jundishapur University of Medical Sciences,Ahvaz,Iran(Grant No.OG 96106)
文摘Objective: To evaluate the prevalence and risk factors of intestinal parasitic infections in the urban and rural areas of Shushtar County,southwest Iran.Methods: A total of 1 008 fecal samples were analyzed by direct smear examination,formalinether concentration,and Ziehl-Neelsen and trichrome staining; furthermore,PCR was used to distinguish Trichostrongylus and hookworm species based on 28 S rRNA gene.Results: Totally,16.0% cases tested positive,either with a pathogenic or a non-pathogenic parasite. Protozoa were detected in 14.0%,helminths in 1.0%,protozoa and helminth coinfections were detected in 0.3%,and co-infections of two protozoa were detected in 0.7% of cases. The most common protozoa and helminths were Giardia duodenalis(7.7%) and Trichostrongylus spp.(0.5%),respectively. Among five microscopy Trichostrongylus positive cases,Trichostrongylus culbriformis was successfully identified in three isolates by sequencing. In the rural areas,the prevalence of parasitic infection was higher(9.8%) than that in the urban areas(6.2%). A significant association was found between educational level,type of drinking water,animals contact,hand-washing,and clinical symptoms. Conclusions: This study indicates that intestinal parasitic infections remain as a public health priority in Shushtar County. It seems that drinking water and environmental sanitation are the main risk factors of parasitic infections in rural areas.
文摘Introduction: Intestinal parasitic infections are among the most common communicable diseases worldwide, particularly in developing countries. Worldwide, about 3.5 billion people are affected, and 450 million are ill as a result of these infections, among whom, the majority are children. The objective of this study was to assess prevalence of intestinal parasites infection and associated risk factors among school children in Dagi primary school, ANRS, Ethiopia. Methods: Institutional-based cross-sectional study was conducted by involving 399 school children from 24 September to 19 October, 2012. Structured questionnaires were used to identify environmental, socio-demographic and behavioral factors and stool specimens were collected and examined for parasites using direct smear and formal-ether concentration technique. Data analysis was done by using SPSS version 15 statistical soft ware. Results: Eight species of intestinal parasites were identified with an overall prevalence of 77.9%. Students were infected with one or more intestinal parasites and the predominant parasite was hook worm, 94 (23.6%) followed by G. lamblia 91 (22.8%), E. histoltica 86 (21.6%) and Strongyloides 6 (1.5%). The presence of mixed parasitic infection was 106 (34.1%), double and triple infections were 97 (91.5%) and 9 (8.5%) respectively. Intestinal parasitic infection was higher in children whose fathers’ occupational status were farmers, who had unclean finger nails and who did not have the habit of wearing shoes (p parasites infection was an important public health problem among Dagi primary school children. Therefore, the local health office and other governmental and non-governmental organizations need to give attention to this serious problem of intestinal parasitic infection of school children.
文摘Objective:To provide baseline information of parasitic infections in 3 suburban government schools,Lakhok subdistrict of Muang Pathum Thani,Thailand.Methods:This study was conducted between May-June 2010 using simple direct smear and modified formalin ether and from a population of 1253 in 3 suburban government schools.Results:Total samples of 202registered and participated.The average of prevalence of infection from 3 schools was 13.9%,there were 13.7%,14.3%and 13.9%in N,S and R school,respectively with no significant difference between schools(P>0.05).The infection rates did not show significant difference between gender(P>0.05).The highest rate of infection was 20.4%in Pathom 2(8 years)students and the lowest was4%in Pathom 1(7 years)with statistically difference between age groups(P<0.05).The highest prevalence of pathogenic protozoa was Giardia lamblin(G.lamblia)which was found in 50%of infected cases,followed by 25%of Entamoeba Inictolytica(E.histolytica)and Blastocystis hominis(B.hominis).The highest prevalence of non-pathogenic protozoa was Endnhmat nano(E.nana)which was found in 88.9%,followed by 11.1%of Entamoeba coli(E.coli).Mixed infections between Blastocwstis hominis(B.hominis)and Endolimax nana(E.nana)were reported at 7.1%.The only helminthic infection found in this study area was hookworm,found in 1 student(3.8%).The formalin ether concentration technique showed a higher efficacy of detection(78%-100%)than the simple direct smear method(0%-50%).Conclusions:Surveillance of protozoan infections may need to be focused on suburban areas.
