La Asociación Peruana de Helmintología e Invertebrados Afines (APHIA), fundada en la ciudad de Lima, Perú, el 12 de febrero de 2005, tiene como fin incentivar y desarrollar el estudio de los helmintos e invertebrados afines con énfasis en la conservación, biodiversidad, sanidad vegetal, salud humana y animal.

The aim of this study was to determine the prevalence and mean intensity of infection by the nematode Anisakis physeteris larvae and other helminths according to size and sex. The study was performed on 57 specimens of Coryphaena hippurus selected at random in “Ventanilla” Fisheries Market, Callao, Peru in May 2002. The prevalence and the mean intensity to A. physeteris larvae were of 33,33% and 1,37; to Hysterotylacium sp., adult and larvae were 100% and 88,93%; to Tentacularia coryphaenae metacestods were 71,92% and 6,44; to Nybelinia sp., were 19,29 and 2,64; to Bathycotyle coryphaenae trematods were 28,07% and 2,25 and to Dinurus spp., were 22,81% and 3,42, respectively. The fishes between 127-130 cm of size were the most parasitized by A. physeteris larvae. This species was prevalent in the evaluated population and in spite of the low mean intensity, there is a risk to contract ...

The study aimed to determine the prevalence and distribution of Giardia lamblia in the Peruvian population between 1990 and 2018. A systematic review and meta-analysis of cross-sectional studies was carried out. It was included original studies on the prevalence of G. lamblia, intestinal parasitism or cohort studies that included prevalence data, and diagnosed by parasitological examination, antigen detection, PCR or genetic analysis, published between 1990 and 2018 in Spanish, English, Portuguese or French and carried out in humans. Searches were performed in PubMed, Scopus, LILACS, SciELO, LIPECS, Google Scholar, and ALICIA. Analysis of heterogeneity was performed using Cochrane's Q test and publication bias using Egger's method with StatsDirect v. 3.2.7. The analysis included 33 sources that had information from 37 studies involving 10 109 individuals. The combined prevalence by the ...

En el primer fascículo de 2006, la revista Anales de la Facultad de Medicina, publicó una sinopsis actualizada de 18 especies de triatominos, acerca de la distribución geográfica en el Perú y en otros paí- ses, su sinonimia, algunos comentarios sobre su posición taxonómica y datos de su hábitat (1 ). Esta información es muy útil para los entomólogos, epidemiólogos y otros especialistas que deseen investigar sobre los vectores de la Enfermedad de Chagas. Con el propósito de enriquecer esta valiosa contribución, considero pertinente agregar a esta lista de triatominos, la presencia de Psammolestes tertius Lent & Jurberg, 1965, especie de hábito silvestre que también ha sido informado para el Perú, en el departamento de San Martín (2,3). Pero, se conoce muy poco sobre su distribución geográfica, ecótopo, posición taxonómica, etc. Por ello, es necesario hacer una ...

Objectives: To determine the knowledge, attitudes and practices of slaughter workers from Ica and Chincha, Ica, Peru on Echinococcus granulosus and hydatidosis/ echinococcosis. Materials and Methods: Observational, descriptive study on fifty-five workers interviewed anonymously on E. granulosus and hydatidosis/ echinococcosis in December 2000. Results: The E. granulosus metacestode was called ‘water bag’ by 25 (45,5%) of the workers and hydatid cysts by 10 (18,2%). The cattle and sheep were mostly identified as intermediate hosts but the workers would not know the definitive hosts or transmission mechanisms. Thirty six (65,5%) slaughters considered they would receive treatment if infected and 17 (30,9%) would eliminate their dogs if they would observe helminthes in their feces stools. A group of 21 workers (38,2%) admitted that hydatid cysts are left on the abattoir floor, 30 (54,5%)...

Objetivos. Evaluar los conocimientos, actitudes y prácticas sobre dengue, medidas de prevención y control, e identificar los factores asociados a su desconocimiento, en alumnos de una institución educativa estatal. Diseño. Estudio observacional transversal. Lugar. Institución educativa estatal en Chorrillos, Lima, Perú. Participantes. Alumnos de educación primaria. Métodos. En el año 2013, se encuestaron 142 alumnos del quinto y sexto grado de educación primaria y se exploró la percepción en 12 brigadieres en base a la técnica proyectiva. Principales medidas de resultados. Conocimientos, actitudes y prácticas sobre dengue. Resultados. El 53,5 % (76) era varón y el promedio de edad fue 11,2 con ± 1,05 años. El 33,1 % (47; IC95% 25,4 a 41,4) de los estudiantes tenía un conocimiento básico de dengue y 53,5% (76) identificaron la forma de transmisión vectorial del dengue....

Introduction. Giardiasis is caused by an intestinal protozoan, Giardia lamblia. Despite its high prevalence and geographical transmission variability, there is no risk stratification tool available to prioritize interventions. Objective. To estimate the prevalence of G. lamblia in Peruvian preschoolers and schoolchildren by ecoregion from 1990 to 2018. Methods. Based on a previous meta-analysis, we conducted a G. lamblia prevalence sub-analysis by ecoregions from data of 26 studies in Peruvian preschoolers and school-aged children between 1990 and 2018. The data was extracted by district, a classification by ecoregions was made through Google Earth. Heterogeneity was analyzed using Cochrane Q test and publication bias applying the Egger method with StatsDirect version 3.2.7. The absolute risk method was performed to stratify the prevalence at district level, and 4 strata were defined bas...

The aim of this study was to determine the prevalence and mean intensity of infection by the nematode Anisakis physeteris larvae and other helminths according to size and sex. The study was performed on 57 specimens of Coryphaena hippurus selected at random in “Ventanilla” Fisheries Market, Callao, Peru in May 2002. The prevalence and the mean intensity to A. physeteris larvae were of 33,33% and 1,37; to Hysterotylacium sp., adult and larvae were 100% and 88,93%; to Tentacularia coryphaenae metacestods were 71,92% and 6,44; to Nybelinia sp., were 19,29 and 2,64; to Bathycotyle coryphaenae trematods were 28,07% and 2,25 and to Dinurus spp., were 22,81% and 3,42, respectively. The fishes between 127-130 cm of size were the most parasitized by A. physeteris larvae. This species was prevalent in the evaluated population and in spite of the low mean intensity, there is a risk to contract ...

Carta al editor.

Introducción. La giardiasis es ocasionada por el protozoario intestinal Giardia lamblia, su transmisión tiene variabilidad geográfica y a pesar de ser muy frecuente, no existe una herramienta de estratificación de riesgo para priorizar las intervenciones. Objetivo. Estimar la prevalencia de G. Lamblia en preescolares y escolares peruanos por ecorregiones entre 1990 a 2018. Métodos. A partir de un metaanálisis previo, se realizó un subanálisis por ecorregiones de la prevalencia de G. lamblia en 26 estudios en preescolares y escolares peruanos entre 1990 a 2018. Se extrajeron los datos por distrito y utilizando Google Earth fueron clasificados en ecorregiones. La heterogeneidad fue analizada mediante la prueba de Q de Cochrane y el sesgo de publicación mediante el método de Egger con StatsDirect versión 3.2.7. Se utilizó el método de riesgo absoluto para estratificar la preval...

The study aimed to determine the prevalence and distribution of Giardia lamblia in the Peruvian population between 1990 and 2018. A systematic review and meta-analysis of cross-sectional studies was carried out. It was included original studies on the prevalence of G. lamblia, intestinal parasitism or cohort studies that included prevalence data, and diagnosed by parasitological examination, antigen detection, PCR or genetic analysis, published between 1990 and 2018 in Spanish, English, Portuguese or French and carried out in humans. Searches were performed in PubMed, Scopus, LILACS, SciELO, LIPECS, Google Scholar, and ALICIA. Analysis of heterogeneity was performed using Cochrane’s Q test and publication bias using Egger’s method with StatsDirect v. 3.2.7. The analysis included 33 sources that had information from 37 studies involving 10 109 individuals. The combined prevalence by t...

Objectives. To assess the knowledge, attitudes and practices on dengue fever, measures for prevention and control, and to identify factors related to unawareness in public elementary school students in the district of Chorrillos, Lima, Peru. Design. Cross sectional observational study. Setting. State elementary institution in Chorrillos district, Lima, Peru. Participants. Students of elementary school. Methods. In the year 2013, 142 students from fifth and sixth grade answered a survey questionnaire. We explored the perception among 12 school brigadiers using the projective technique. Main outcome measures. Knowledge, attitudes and practices about dengue. Results. In the study, 53.5% students were boys (76), mean age 11.2 ± 1.05 years old; 33.1% (47; CI95% 25.4-41.4) had basic knowledge about dengue; 53.5% (76) were able to identify dengue virus’ mechanism of vertical transmission; 29...

There are not known bibliometric indicators of the information produced by the surveillance system in Peru. Aim: to determine the trend of downloads and the total number of citations of Boletín Epidemiológico (Lima) for biomedical journals (January 1991 - August 2011). Methods: visibility was evaluated by download statistics available at www.dge.gob.pe. Citations were searched electronically using the titles and acronyms of Boletín Epidemiológico (Lima) on Google Scholar. Additionally, we manually reviewed the reference section of 6 journals printed between 2000 and 2004, and 12 on-line journals, indexed and published between January 1991 and August 2011. Results: During the study period, Boletín Epidemiológico (Lima) was cited 89 times by 13 journals, 4 of which were international. Boletín Epidemiológico (Lima) was cited in 35 (39.3%) articles by Revista Peruana de Medicina Expe...

Los objetivos de esta revisión son mostrar los estudios experimentales realizados sobre el ciclo biológico, cultivo, patogenicidad de larvas de nemátodes anisákidos y dar a conocer la situación epidemiológica actual y la probable emergencia de la anisakidosis en el Perú. Proponer medidas de prevención y control, y las perspectivas y necesidades de investigación. Los estudios sobre patogenicidad experimental en gatos, perros y hamsters son incompletos. Se han reportado ocho casos de anisakidosis humana en etapa aguda (cinco comprobados y tres probables). Probablemente emerge durante el fenómeno “El Niño”, y en condiciones normales por el posible incremento del consumo de pescado crudo y otros factores. En la costa peruana las larvas de Anisakis simplex y A. physeteris parasitan a cinco y cuatro peces de consumo directo, respectivamente, y las de Pseudoterranova decipiens, a...

El objetivo del reporte es comunicar un nuevo caso de anisakidosis humana en el Perú, producido por una larva del nemátode Pseudoterranova decipiens, aislado de una mujer de 17 años natural de Lima, que había ingerido “cebiche” en un establecimiento de la ciudad de Ica, en la Costa central del Perú. Aproximadamente, 4 horas después de la ingesta del potaje, la paciente presenta malestar general, luego, con sensación de náusea a nivel del epigastrio, este síntoma se hizo más intenso 5 horas después y la paciente presentó vómitos, en cuyo contenido se halló un nemátode vivo que fue identificado como larva L3 de P. decipiens. Este es uno de los agentes etiológicos de la anisakidosis.

Pulmonary lesions caused by the nematode Pseudalius inflexus (Rudolphi, 1808) Schneider, 1866; in two specimens, male and female of Burmeister's Porpoise (Phocoena spinipinnis Burmeisteir, 1865). The Cetaceans were captured in the Reserva Nacional de Paracas, Peru. Macroscopically, the lung shown superficial harden nodules of 52 cm of diameter and on the cut surface the nematodes were seen surrounded by severe chronic inflammatory reaction and the bronchium are occluded by the cranial part of these parasites and the caudal part remains free. Microscopically, the parasites are shown in different degree of degeneration and they are surrounded by severe inflammatory exudate composed of eosinophils, macrophages, mononuclear cells, multinuclear giant cells and dense granulation tissue scattered by the pulmonary parenchyma with distended and necrotic alveoli. Other lesions included hyperplasia...

Se describen las lesiones pulmonares ocasionadas por el nematodo, Pseudalius inflexus (Rudolphi, 1808) Schneider, 1866 en dos especímenes, macho y hembra, de Phocoena spinipinnis Burmeisteir, 1865 "marsopa espinosa", capturados en aguas de la Reserva Nacional de Paracas, Perú. Macroscópicamente, los pulmones mostraron nódulos indurados superficiales de 0,5 - 2 cm de diámetro, donde al corte se encontraron nematodos rodeados por una severa reacción inflamatoria crónica y en los bronquios se observa que el extremo anterior de los parásitos obstruye la luz mientras que el extremo posterior se encuentra libre. Microscópicamente, los parásitos están en diferentes grados de degeneración, rodeados de un extenso exudado inflamatorio compuesto por eosinófilos, macrófagos, mononucleares, células gigantes multinucleadas con extenso tejido de granulación que infiltra el parénquima p...

Los objetivos del estudio fueron conocer la prevalencia y distribución de las enteroparasitosis y determinar la prevalencia de coproantígenos de Taenia solium en la comunidad andina de Huancapi, Provincia de Víctor Fajardo, Ayacucho, Perú. Estudio observacional, descriptivotransversal realizado entre julio y setiembre del año 2000, por los métodos de Ritchie y Ziehl- Neelsen modificado para Cryptosporidium sp, se examinaron muestras de heces de 312 personas de la población general. Adicionalmente, se investigó la presencia de coproantígenos de T. solium por el método de ELISA. El 77,88% (243) fue positivo a uno o más enteroparásitos. La prevalencia para cada especie de protozoario fue: 66,99% para Entamoeba coli; 12,50% para Iodamoeba butschlii; 10,90% para Chilomastix mesnili y 10,57% para Giardia lamblia; para los helmintos fue: 4,49% para Ascaris lumbricoides; 3,52% para H...

Echinococcosis by Echinococcus granulosus is a problem of public health in Peru. The objective of the study was to describe the clinical and epidemiological characteristics of cystic echinococcosis cases diagnosed between 1991 and 2002 in the department of Junín in the central Andes of Peru. It was an observational study, historical cases series design. We reviewed the clinical records in hospitals of Junín to identify cases that concurred with the definition of probable and confirmed case. 1100 cases were identified, the average age ranging between 29.2 ± 18.3 years of age, 80.5% (886) confirmed. The disease is more common in women (p = 0,000022) and in who hadn’t completed elementary education (p= 0,001083). Out of all the series, the group of 5 to 19-year olds presented four hundred and three cases (36.7%). Five hundred and eighty one cases (52.8%) had a background of exposure to...

Introduction: The COVID-19 pandemic has increased the magnitude of mental illnesses such as depression, not only in the general population, but also in healthcare personnel. However, in Peru the prevalence, and the associated factors for developing depression in healthcare personnel, are not known. The objective was to determine the prevalence and identify the factors associated with depression in healthcare personnel, in the context of the SARS-CoV-2 pandemic. Methods: An analytical cross-sectional study was carried out from May to September, 2020 in healthcare establishments. A sample of 136 health workers were included and a survey was applied to collect the data. Depression as a dependent variable was measured using the Zung self-report scale. To identify the associated factors, the bivariate and multivariate analysis was performed by logistic regression with STATA v 14. Results: The...