Marcela Contreras
Biographic Data
| ID | 6828459 |
|---|---|
| NAME | Marcela Contreras |
| GIVEN NAMES | Marcela |
| FAMILY NAME | Contreras |
| SIGNATURE | CONTRERAS M |
| AFFILIATIONS | World Health Organization Regional Office for the Americas |
| VERIFIED | No |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 7 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2016 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Protecting our frontline: Vaccination policies for health care workers in the Americas
Objective: This paper explores vaccination policies for health care workers (HCWs) in effect in all 35 Pan American Health Organization (PAHO) countries plus the British territory of Anguilla to highlight strengths and challenges within the region and inform relevant policies and interventions. Methods: Data were collected in two phases. Phase 1 (March–September 2021) was conducted as part of a global survey examining characteristics of national …
Validación de estimaciones satelitales para intervenciones de salud: El uso de microcensos en Bolivia, 2024
Objetivo. Proporcionar estimaciones operativas de población más precisas para el beneficio del programa de inmunización de Bolivia. Método. Este estudio ecológico transversal calculó estimaciones de población utilizando covariables geoespaciales extraídas de imágenes satelitales de Meta Data for Good y WorldPop, y se validaron con los resultados de enumeración del microcenso realizado en cinco municipios de Bolivia. Resultados. De los 6 077 edifi…
HPV vaccination introduction worldwide and WHO and Unicef estimates of national HPV immunization coverage 2010–2019
WHO/UNICEF estimates for HPV vaccination coverage from 2010 to 2019 are analyzed against the backdrop of the 90% coverage target for HPV vaccination by 2030 set in the recently approved global strategy for cervical cancer elimination as a public health problem. As of June 2020, 107 (55%) of the 194 WHO Member States have introduced HPV vaccination. The Americas and Europe are by far the WHO regions with the most introductions, 85% and 77% of thei…
Assessing electronic immunization registries: The Pan American Health Organization experience
Objective. To develop a methodology to assess electronic immunization registries (EIRs) in low- and middle-income countries (LMICs) in Latin America and the Caribbean. Methods. A team from the Immunization Unit at the Pan American Health Organization (PAHO) reviewed existing methodologies to evaluate health information systems, particularly the Performance of Routine Information System Management (PRISM) framework and methodologies used to assess…
Perception of Visual Stimuli: Specifics of Eye Movements by Representatives of Different Cultures
The present research explores the impact of native language on perception patterns of monolingual students from China, Russia, Mexico, the USA, and bilingual students from India. The research findings, obtained with verbal protocols, demonstrate statistically significant differences in the way representatives of different cultures perceive information and prove the hypothesis according to which the principles of sentence organization in native la…
Progress in vaccination towards hepatitis B control and elimination in the Region of the Americas
The achievements of vaccination programs in the Americas suggest that the elimination of perinatal and early childhood HB transmission could be feasible in the short-term. Moreover, the data gathered indicate that the Region may have already achieved the 2020 WHO goal for HB control
El bilingüismo como protección ante la demencia: Inconsistencias empíricas y nuevas propuestas metodológicas
El deterioro cognitivo durante el envejecimiento normal o patológico puede retrasarse mediante experiencias que fomentan la reserva cognitiva. En este sentido, algunos estudios indican que el bilingüismo retrasaría los síntomas de la enfermedad de Alzheimer. Sin embargo, la evidencia se basa en diseños retrospectivos que arrojan resultados contradictorios. Este trabajo analiza dichos resultados, identifica las principales variables detrás de sus …
No prominent works on this page.
El bilingüismo como protección ante la demencia: Inconsistencias empíricas y nuevas propuestas metodológicas
El deterioro cognitivo durante el envejecimiento normal o patológico puede retrasarse mediante experiencias que fomentan la reserva cognitiva. En este sentido, algunos estudios indican que el bilingüismo retrasaría los síntomas de la enfermedad de Alzheimer. Sin embargo, la evidencia se basa en diseños retrospectivos que arrojan resultados contradictorios. Este trabajo analiza dichos resultados, identifica las principales variables detrás de sus …
Progress in vaccination towards hepatitis B control and elimination in the Region of the Americas
The achievements of vaccination programs in the Americas suggest that the elimination of perinatal and early childhood HB transmission could be feasible in the short-term. Moreover, the data gathered indicate that the Region may have already achieved the 2020 WHO goal for HB control
Perception of Visual Stimuli: Specifics of Eye Movements by Representatives of Different Cultures
The present research explores the impact of native language on perception patterns of monolingual students from China, Russia, Mexico, the USA, and bilingual students from India. The research findings, obtained with verbal protocols, demonstrate statistically significant differences in the way representatives of different cultures perceive information and prove the hypothesis according to which the principles of sentence organization in native la…
Assessing electronic immunization registries: The Pan American Health Organization experience
Objective. To develop a methodology to assess electronic immunization registries (EIRs) in low- and middle-income countries (LMICs) in Latin America and the Caribbean. Methods. A team from the Immunization Unit at the Pan American Health Organization (PAHO) reviewed existing methodologies to evaluate health information systems, particularly the Performance of Routine Information System Management (PRISM) framework and methodologies used to assess…
HPV vaccination introduction worldwide and WHO and Unicef estimates of national HPV immunization coverage 2010–2019
WHO/UNICEF estimates for HPV vaccination coverage from 2010 to 2019 are analyzed against the backdrop of the 90% coverage target for HPV vaccination by 2030 set in the recently approved global strategy for cervical cancer elimination as a public health problem. As of June 2020, 107 (55%) of the 194 WHO Member States have introduced HPV vaccination. The Americas and Europe are by far the WHO regions with the most introductions, 85% and 77% of thei…
Protecting our frontline: Vaccination policies for health care workers in the Americas
Objective: This paper explores vaccination policies for health care workers (HCWs) in effect in all 35 Pan American Health Organization (PAHO) countries plus the British territory of Anguilla to highlight strengths and challenges within the region and inform relevant policies and interventions. Methods: Data were collected in two phases. Phase 1 (March–September 2021) was conducted as part of a global survey examining characteristics of national …
Validación de estimaciones satelitales para intervenciones de salud: El uso de microcensos en Bolivia, 2024
Objetivo. Proporcionar estimaciones operativas de población más precisas para el beneficio del programa de inmunización de Bolivia. Método. Este estudio ecológico transversal calculó estimaciones de población utilizando covariables geoespaciales extraídas de imágenes satelitales de Meta Data for Good y WorldPop, y se validaron con los resultados de enumeración del microcenso realizado en cinco municipios de Bolivia. Resultados. De los 6 077 edifi…
Vaccination (3 works) · Vaccine Coverage and Hesitancy (3 works) · Demography (2 works) · Developing country (2 works) · Environmental health (2 works) · Geography (2 works) · Hepatitis B Virus Studies (2 works) · Humanities (2 works) · Immunization (2 works) · Medicine (2 works)