[A comprehensive approach to achieving reverification of measles elimination in Venezuela, 2019-2023Abordagem integral para a reverificação da eliminação do sarampo na Venezuela, 2019-2023].

Objective: To describe the comprehensive activities implemented in the Bolivarian Republic of Venezuela to achieve reverification of measles elimination by 2023.

Methods: Descriptive study of the procedures implemented to achieve reverification of measles elimination by 2023 according to the components set forth in the Regional Framework for the Monitoring and Re-verification of Measles, Rubella, and Congenital Rubella Syndrome Elimination in the Americas, published in 2022.

Results: Due to a measles outbreak that began in epidemiological week (EW) 26 of 2017, Venezuela lost the elimination status which had been conferred in 2016 by the Expert Committee.

[Comprehensive approach to the interruption of the measles outbreak in Venezuela, 2017-2019: lessons learnedAbordagem integral para a interrupção do surto de sarampo na Venezuela, 2017-2019: lições aprendidas].

Objective: Describe the challenges, strategies and lessons learned in Venezuela during the measles outbreak of 2017-2019, and discuss the mechanisms employed for its containment, which led to the interruption of endemic transmission.

Methods: Descriptive study of the actions taken by Venezuela to interrupt the outbreak.

Results: When the outbreak was confirmed, the Venezuelan government, with technical cooperation from the Pan American Health Organization, activated a plan to interrupt measles transmission.

Dissemination of the Omicron Variant and Its Sub-Lineages among Residents and Travelers in Its First Year of Emergence in Venezuela.

The emergence of the SARS-CoV-2 Variant of Concern (VOC), Omicron, has been characterized by an explosive number of cases in almost every part of the world. The dissemination of different sub-lineages and recombinant genomes also led to several posterior waves in many countries. The circulation of this VOC and its major sub-lineages (BA.

First Case of Monkeypox in Venezuela: Partial Complete Genome Sequence Allowed Its Grouping into the West African Clade II.

The ongoing epidemic of monkeypox virus (MPXV) infection has already reached more than 50,000 persons worldwide until the end of August 2022. We report the first case detected in Venezuela. The patient reported traveling from Spain and contact with friends tested positive for MPXV after his return.

Description of a One-Year Succession of Variants of Interest and Concern of SARS-CoV-2 in Venezuela.

Some of the lineages of SARS-CoV-2, the new coronavirus responsible for COVID-19, exhibit higher transmissibility or partial resistance to antibody-mediated neutralization and were designated by WHO as Variants of Interests (VOIs) or Concern (VOCs). The aim of this study was to monitor the dissemination of VOIs and VOCs in Venezuela from March 2021 to February 2022. A 614 nt genomic fragment was sequenced for the detection of some relevant mutations of these variants.

Detection of the Omicron variant of SARS-CoV-2 in international travelers returning to Venezuela.

Background: By the end of 2021, the SARS-CoV-2 Variant of Concern (VOC) Delta was predominant in most of the world. At the end of November, the Omicron variant was first detected in South Africa. This variant was immediately classified as VOC, due to the explosive increase of cases in South Africa, and the great number of mutations exhibited by this new lineage.

Introduction and rapid dissemination of SARS-CoV-2 Gamma Variant of Concern in Venezuela.

In less than two years since SARS-CoV-2 emerged, the new coronavirus responsible for COVID-19, has accumulated a great number of mutations. Many of these mutations are located in the Spike protein and some of them confer to the virus higher transmissibility or partial resistance to antibody mediated neutralization. Viral variants with such confirmed abilities are designated by WHO as Variants of Concern (VOCs).

SARS-CoV-2 genetic diversity in Venezuela: Predominance of D614G variants and analysis of one outbreak.

SARS-CoV-2 is the new coronavirus responsible for COVID-19 disease. The first two cases of COVID-19 were detected in Venezuela on March 13, 2020. The aim of this study was the genetic characterization of Venezuelan SARS-CoV-2 isolates.