Respiratory virus behavior: Results of laboratory-based epidemiological surveillance.

Background: Respiratory viruses have clinical and epidemiological importance. With the COVID-19 pandemic, interest has focused on SARS-CoV-2, but as a result, the number of samples available for the differential diagnosis of other respiratory viruses has increased.

Study Design: Cross-sectional study.

Retrospective Analysis of Severe Dengue by Dengue Virus Serotypes in a Population with Social Security, Mexico 2023.

Background: Risk factors for severe dengue manifestations have been attributed to various factors, including specific serotypes, sex, and age. Mexico has seen the re-emergence of DENV-3, which has not circulated in a decade.

Objective: To describe dengue serotypes by age, sex, and their association with disease severity in dengue-positive serum samples from epidemiological surveillance system units.

Effectiveness of a diagnostic algorithm for dengue based on an artificial neural network.

Introduction: Dengue is a disease with a wide clinical spectrum. The early identification of dengue cases is crucial but challenging for health professionals; therefore, it is necessary to have effective diagnostic instruments to initiate timely care.

Objective: To evaluate the effectiveness of an algorithm based on an artificial neural network (ANN) to diagnose dengue in an endemic area.

Impact of vaccination on infection or death from COVID-19 in individuals with laboratory-confirmed cases: Case-control study.

Objectives: The objective of this study is to estimate the effectiveness of COVID-19 vaccines in people treated within the social security system whose vaccination status was reported to the epidemiological surveillance system.

Study Design: Case-control study.

Methods: This was a case-control study conducted.

Predict the incidence of Guillain Barré Syndrome and arbovirus infection in Mexico, 2014-2019.

The Dengue (DENV), Zika (ZIKV), and Chikungunya (CHIKV) virus infections have been linked to Guillain-Barré syndrome (GBS). GBS has an estimated lethality of 4% to 8%, even with effective treatment. Mexico is considered a hyperendemic country for DENV due to the circulation of four serotypes, and the ZIKV and CHIKV viruses have also been circulating in the country.

[Serenity and objectivity in the face of severe childhood hepatitis: the diagnostic challenge].

The appearance of acute hepatitis of unknown aetiology in children has set off alarms in the World Health Organization and in member countries; identifying it and studying it lay out a diagnostic challenge for first-contact medical personnel and especially for pediatricians of Mexico, as well as for the coordination of care in health services. The international outlook and an analysis of the clinical manifestations are described, as well as key points for the identification and an observation of the samples that are requested for their study in Mexico.