Erik H Mercado
Biographic Data
| ID | 7029024 |
|---|---|
| NAME | Erik H Mercado |
| GIVEN NAMES | Erik H |
| FAMILY NAME | Mercado |
| SIGNATURE | MERCADO E H |
| AFFILIATIONS | Universidad Peruana Cayetano Heredia |
| ORCID | 0000-0003-0899-521X |
| VERIFIED | Yes |
| TOTAL WORKS | 9 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 9 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2011 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Detección de Streptococcus pneumoniae en líquidos estériles mediante una PCR en tiempo real (qPCR) en pacientes hospitalizados con sospecha de enfermedad neumocócica invasiva
The standard for diagnosing invasive pneumococcal disease (IPD) is to isolate pneumococcus in culture. However, the etiological agent cannot be identified in some patients, especially those who received empirical antibiotic therapy. This study aimed to detect pneumococcus in normally sterile fluids by qPCR in patients with suspected IPD hospitalized in Lima. qPCR had a detection limit of 1.2 x 101 genome copies/uL. Of the 71 clinical samples (51 …
Distribución de serotipos, biotipo y sensibilidad antibiótica de Haemophilus influenzae en niños portadores nasofaríngeos en Lima, Perú
After the introduction of the Hib (Haemophilus influenzae type b) vaccine, invasive infection caused by this bacterium markedly decreased; however, concern increased regarding the other typable and non-typable strains (NTHi). Prior colonization with this pathogen can become a source of invasive infection. This study aimed to determine colonization by H. influenzae in 888 healthy children under 24 months of age. Colonization was 4.1% (37 samples) …
Resistencia antibiótica de Streptococcus pneumoniae en portadores nasofaríngeos sanos de siete regiones del Perú
High levels of resistance found to penicillin, co-trimoxasole and macrolides in isolated pneumococcus strains of healthy carriers in all studied regions, and their association to a previous use of antibiotics, represent a significant public health problem in our country. This emphasizes the need to implement nationwide strategies to reduce the irrational use of antibiotics, especially among children. It is necessary to complement data of resistan…
Serotipos de neumococo en niños portadores antes de la vacunación antineumocócica en el Perú
Objectives. To determine the carriage rate and serotype distribution of Streptococcus pneumoniae in the nasopharynx of healthy children younger than 2 years prior to the universal use of the pneumococcal conjugate vaccines in Peru. Materials and methods. Between 2007 and 2009 we collected nasopharyngeal swab samples from 2,123 healthy children aged 2 to 24 months in the vaccination and healthy children consultation offices of pediatric hospitals …
Serotipos de neumococo en niños portadores antes de la vacunación antineumocócica en el Perú
The distribution of vaccine serotypes in the analyzed strains was of 50% for the serotypes present in the seven-valent vaccine, 50.2% for the serotypes present in the ten-valent vaccine and 57.2% for those present in the thirteen-valent vaccine
Frecuencia y patotipos de Escherichia coli diarrogénica en niños peruanos con y sin diarrea
Introduction. Diarrheagenic E. coli (DEC) are a major cause of diarrhea in children in developing countries. However, they are not part of routine diagnosis in clinical laboratories. Objectives. To determine the DEC prevalence in Peruvian children and to describe the genetic variability of these strains. Materials and methods. A total of 8 003 E. coli strains previously isolated from eight different studies of diarrhea in children, mainly from pe…
Patrones de adherencia de cepas de Escherichia coli Difusamente adherente (Daec) provenientes de niños con y sin diarrea
Our findings suggest a difference between adherence patterns, actin polymerization and motility between DAEC strains corresponding to diarrhea and control groups. The significance of these results must be confirmed with a bigger number of strains and determining the presence of virulence genes in the strains
Patrones de adherencia de cepas de Escherichia coli difusamente adherente (Daec) provenientes de niños con y sin diarrea
Introduction. Diffusely adherent E. coli (DAEC) is the sixth recognized group of diarrheagenic E. coli. However, its association with diarrhea remains controversial. Variability in the adherence patterns of clinical strains is unknown. Objectives. To compare the adherence patterns between strains isolated from children with and without diarrhea. Materials and methods. A total of 31 DAEC strains were analyzed, 25 from children with diarrhea and 6 …
Frecuencia y patotipos de Escherichia coli diarrogénicas en niños peruanos con y sin diarrea
DEC are a major cause of diarrhea in Peruvian children. These pathogens are highly heterogeneous. Additional studies are required to determine the prevalence in rural areas of Peru and in severe diarrhea cases
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Frecuencia y patotipos de Escherichia coli diarrogénica en niños peruanos con y sin diarrea
Introduction. Diarrheagenic E. coli (DEC) are a major cause of diarrhea in children in developing countries. However, they are not part of routine diagnosis in clinical laboratories. Objectives. To determine the DEC prevalence in Peruvian children and to describe the genetic variability of these strains. Materials and methods. A total of 8 003 E. coli strains previously isolated from eight different studies of diarrhea in children, mainly from pe…
Patrones de adherencia de cepas de Escherichia coli Difusamente adherente (Daec) provenientes de niños con y sin diarrea
Our findings suggest a difference between adherence patterns, actin polymerization and motility between DAEC strains corresponding to diarrhea and control groups. The significance of these results must be confirmed with a bigger number of strains and determining the presence of virulence genes in the strains
Patrones de adherencia de cepas de Escherichia coli difusamente adherente (Daec) provenientes de niños con y sin diarrea
Introduction. Diffusely adherent E. coli (DAEC) is the sixth recognized group of diarrheagenic E. coli. However, its association with diarrhea remains controversial. Variability in the adherence patterns of clinical strains is unknown. Objectives. To compare the adherence patterns between strains isolated from children with and without diarrhea. Materials and methods. A total of 31 DAEC strains were analyzed, 25 from children with diarrhea and 6 …
Frecuencia y patotipos de Escherichia coli diarrogénicas en niños peruanos con y sin diarrea
DEC are a major cause of diarrhea in Peruvian children. These pathogens are highly heterogeneous. Additional studies are required to determine the prevalence in rural areas of Peru and in severe diarrhea cases
Serotipos de neumococo en niños portadores antes de la vacunación antineumocócica en el Perú
The distribution of vaccine serotypes in the analyzed strains was of 50% for the serotypes present in the seven-valent vaccine, 50.2% for the serotypes present in the ten-valent vaccine and 57.2% for those present in the thirteen-valent vaccine
Resistencia antibiótica de Streptococcus pneumoniae en portadores nasofaríngeos sanos de siete regiones del Perú
High levels of resistance found to penicillin, co-trimoxasole and macrolides in isolated pneumococcus strains of healthy carriers in all studied regions, and their association to a previous use of antibiotics, represent a significant public health problem in our country. This emphasizes the need to implement nationwide strategies to reduce the irrational use of antibiotics, especially among children. It is necessary to complement data of resistan…
Serotipos de neumococo en niños portadores antes de la vacunación antineumocócica en el Perú
Objectives. To determine the carriage rate and serotype distribution of Streptococcus pneumoniae in the nasopharynx of healthy children younger than 2 years prior to the universal use of the pneumococcal conjugate vaccines in Peru. Materials and methods. Between 2007 and 2009 we collected nasopharyngeal swab samples from 2,123 healthy children aged 2 to 24 months in the vaccination and healthy children consultation offices of pediatric hospitals …
Detección de Streptococcus pneumoniae en líquidos estériles mediante una PCR en tiempo real (qPCR) en pacientes hospitalizados con sospecha de enfermedad neumocócica invasiva
The standard for diagnosing invasive pneumococcal disease (IPD) is to isolate pneumococcus in culture. However, the etiological agent cannot be identified in some patients, especially those who received empirical antibiotic therapy. This study aimed to detect pneumococcus in normally sterile fluids by qPCR in patients with suspected IPD hospitalized in Lima. qPCR had a detection limit of 1.2 x 101 genome copies/uL. Of the 71 clinical samples (51 …
Distribución de serotipos, biotipo y sensibilidad antibiótica de Haemophilus influenzae en niños portadores nasofaríngeos en Lima, Perú
After the introduction of the Hib (Haemophilus influenzae type b) vaccine, invasive infection caused by this bacterium markedly decreased; however, concern increased regarding the other typable and non-typable strains (NTHi). Prior colonization with this pathogen can become a source of invasive infection. This study aimed to determine colonization by H. influenzae in 888 healthy children under 24 months of age. Colonization was 4.1% (37 samples) …
Biology (7 works) · Medicine (7 works) · Microbiology (7 works) · Pneumonia and Respiratory Infections (5 works) · Diarrhea (4 works) · Escherichia coli research studies (4 works) · Gene (4 works) · Genetics (4 works) · Internal Medicine (4 works) · Respiratory viral infections research (4 works)