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Giardiasis in children living in post-earthquake camps from Armenia (Colombia).

Lora-Suarez F, Marin-Vasquez C, Loango N, Gallego M, Torres E, Gonzalez MM, Castaño-Osorio JC, Gómez-Marín JE - BMC Public Health (2002)

Bottom Line: This study was carried out in order to determine the epidemiological risk factors associated with this high prevalence.Giardia cysts were observed in 60.4% of the samples presented and trophozoites in 4.6%.The following epidemiological and laboratory factors were significantly associated with Giardia infection: 1.

View Article: PubMed Central - HTML - PubMed

Affiliation: Programa de Biología, Facultad de Educacion, Universidad del Quindío, Armenia, Colombia. fabisuarez6@hotmail.com

ABSTRACT

Background: An earthquake in the coffee growing region of Colombia on January 25, 1999 destroyed 70% of the houses in Armenia city. Transitory housing camps still remained until two years after the disaster. Parasitological studies found that, in this population, giardiasis was the most frequent parasitic infection. This study was carried out in order to determine the epidemiological risk factors associated with this high prevalence.

Methods: Fecal samples were obtained from 217 children aged between 3 and 13 years. Stool samples were studied by direct wet examination and stained with ferric hematoxilin for microscopical examination. Epidemiological data were collected by questionnaire and analyzed by using the Epi-info software (CDC, Atlanta 2001).

Results: Giardia cysts were observed in 60.4% of the samples presented and trophozoites in 4.6%. The following epidemiological and laboratory factors were significantly associated with Giardia infection: 1. Use of communal toilet (vs. individual toilet) OR: 3.9, CI95%: 1.2-16; 2. water provision by municipal ducts (vs. water provision by individual tanks) OR: 3.5, CI95% 1.1-14, and 3. presence of mucus in stool OR: 2.3, IC95%: 0.9-6.7.

Conclusions: A high prevalence of giardiasis was found in children living in temporary houses after the 1999 earthquake in Armenia (Colombia). Giardiasis is an emerging disease in post-disaster situations and adequate prevention measures should be implemented during these circumstances.

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Stratified analysis of children who did and did not attend school and presence of Giardia cysts in stool samples from children living in temporary housing after the 1999 earthquake disaters in Armenia.
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Figure 1: Stratified analysis of children who did and did not attend school and presence of Giardia cysts in stool samples from children living in temporary housing after the 1999 earthquake disaters in Armenia.

Mentions: In total 199 of the 217 children studied attended school. The source of water at school was municipal water and communal toilet was the type of sanitary service there. As data were collected concerning the putative factor (water source) and/or disease (Giardia), data were also analyzed on the presence or absence of the confounding variable (attendance at school). The data were then divided into strata for confounding variable (attendance at school) in a series of 2 × 2 tables, one for each level of the confounding variable (Figure 1). Using Mantel-Haenszel odds ratio method the OR was 15.1 (CI95% 8–36) with a p value of 0.00000000. This analysis indicate that drinking municipal water at camps was strongly associated with giardiasis even with the confounding variable "school" taken into account.


Giardiasis in children living in post-earthquake camps from Armenia (Colombia).

Lora-Suarez F, Marin-Vasquez C, Loango N, Gallego M, Torres E, Gonzalez MM, Castaño-Osorio JC, Gómez-Marín JE - BMC Public Health (2002)

Stratified analysis of children who did and did not attend school and presence of Giardia cysts in stool samples from children living in temporary housing after the 1999 earthquake disaters in Armenia.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC101378&req=5

Figure 1: Stratified analysis of children who did and did not attend school and presence of Giardia cysts in stool samples from children living in temporary housing after the 1999 earthquake disaters in Armenia.
Mentions: In total 199 of the 217 children studied attended school. The source of water at school was municipal water and communal toilet was the type of sanitary service there. As data were collected concerning the putative factor (water source) and/or disease (Giardia), data were also analyzed on the presence or absence of the confounding variable (attendance at school). The data were then divided into strata for confounding variable (attendance at school) in a series of 2 × 2 tables, one for each level of the confounding variable (Figure 1). Using Mantel-Haenszel odds ratio method the OR was 15.1 (CI95% 8–36) with a p value of 0.00000000. This analysis indicate that drinking municipal water at camps was strongly associated with giardiasis even with the confounding variable "school" taken into account.

Bottom Line: This study was carried out in order to determine the epidemiological risk factors associated with this high prevalence.Giardia cysts were observed in 60.4% of the samples presented and trophozoites in 4.6%.The following epidemiological and laboratory factors were significantly associated with Giardia infection: 1.

View Article: PubMed Central - HTML - PubMed

Affiliation: Programa de Biología, Facultad de Educacion, Universidad del Quindío, Armenia, Colombia. fabisuarez6@hotmail.com

ABSTRACT

Background: An earthquake in the coffee growing region of Colombia on January 25, 1999 destroyed 70% of the houses in Armenia city. Transitory housing camps still remained until two years after the disaster. Parasitological studies found that, in this population, giardiasis was the most frequent parasitic infection. This study was carried out in order to determine the epidemiological risk factors associated with this high prevalence.

Methods: Fecal samples were obtained from 217 children aged between 3 and 13 years. Stool samples were studied by direct wet examination and stained with ferric hematoxilin for microscopical examination. Epidemiological data were collected by questionnaire and analyzed by using the Epi-info software (CDC, Atlanta 2001).

Results: Giardia cysts were observed in 60.4% of the samples presented and trophozoites in 4.6%. The following epidemiological and laboratory factors were significantly associated with Giardia infection: 1. Use of communal toilet (vs. individual toilet) OR: 3.9, CI95%: 1.2-16; 2. water provision by municipal ducts (vs. water provision by individual tanks) OR: 3.5, CI95% 1.1-14, and 3. presence of mucus in stool OR: 2.3, IC95%: 0.9-6.7.

Conclusions: A high prevalence of giardiasis was found in children living in temporary houses after the 1999 earthquake in Armenia (Colombia). Giardiasis is an emerging disease in post-disaster situations and adequate prevention measures should be implemented during these circumstances.

Show MeSH
Related in: MedlinePlus