[High-quality Follow-up Measles and Rubella vaccination Campaign in Mexico, 2021Campanha de vacinação de seguimento de alta qualidade contra sarampo e rubéola no México, 2021].

Objective: To describe Mexico's experience of a high-quality follow-up vaccination campaign against measles and rubella in children aged 1 to 4 years, and actions taken to recover the coverage of other biologics during the COVID-19 health emergency.

Method: Use of a microplanning tool in the design and implementation of a follow-up campaign to protect 8 604 781 girls and boys aged 1 to 4 years and to complete other vaccination schedules, followed by the implementation of rapid vaccination monitoring.

Results: A total of 8 026 184 doses of MR vaccine were administered to children aged 1 to 4 years, with a coverage rate of 93.

Evaluation and Future Challenges in a Self-Guided Web-Based Intervention With and Without Chat Support for Depression and Anxiety Symptoms During the COVID-19 Pandemic: Randomized Controlled Trial.

Background: The COVID-19 pandemic has had an impact on mental health worldwide. Low- and middle-income countries were largely affected by it. Mexico was one of the most affected countries.

Internet-based self-administered intervention to reduce anxiety and depression symptomatology and improve well-being in 7 countries: protocol of a randomized control trial.

Background: Online psychological interventions have emerged as a treatment alternative because they are accessible, flexible, personalized, and available to large populations. The number of Internet interventions in Latin America is limited, as are Randomized Controlled Trials (RCTs) of their effectiveness and a few studies comparing their effectiveness in multiple countries at the same time. We have developed an online intervention, Well-being Online, which will be available to the public free of charge in 7 countries: Mexico, Ecuador, Peru, Chile, Brazil, Spain, and the Netherlands.

Implementing Standard Diagnosis and Treatment for Locally Advanced Breast Cancer Through Global Research in Latin America: Results From a Multicountry Pragmatic Trial.

Purpose: Breast cancer mortality rates in Latin America (LA) are higher than those in the United States, possibly because of advanced disease presentation, health care disparities, or unfavorable molecular subtypes. The Latin American Cancer Research Network was established to address these challenges and to promote collaborative clinical research. The Molecular Profiling of Breast Cancer Study (MPBCS) aimed to evaluate the clinical characteristics and treatment outcomes of LA participants with locally advanced breast cancer (LABC).

Field study of parasitic contamination of fruits, vegetables and leafy greens in the Ecuadorian Andes.

Background: Raw vegetables have been considered vehicles of enteroparasites. South American countries are among the most important exporters of fresh vegetables, including Ecuador, which has a tropical climate and soils rich in organic matter that allow it to harvest throughout the year for sale to different countries. The aim of the study was to assess the occurrence of the parasitic contamination of fruits, vegetables and leafy greens grown in an agricultural area of the Ecuadorian Andes.