[Results of surveys to users of IMSS children daycare centers during the COVID-19 pandemic].

Background: Studies carried out in Mexico show that the COVID-19 pandemic has negatively impacted families in every field. Confinement has generated problems and economic, social and health instability in a large sector of the population, especially in the most vulnerable, to which children and adolescents are part of.

Objective: To identify the impact of the confinement and closure of children daycare centers from the Instituto Mexicano del Seguro Social (IMSS) derived from the COVID-19 pandemic.

Dissonant health transition in the states of Mexico, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.

Background: Child and maternal health outcomes have notably improved in Mexico since 1990, whereas rising adult mortality rates defy traditional epidemiological transition models in which decreased death rates occur across all ages. These trends suggest Mexico is experiencing a more complex, dissonant health transition than historically observed. Enduring inequalities between states further emphasise the need for more detailed health assessments over time.

[Social determinants of infant mortality in socioeconomic deprived rural areas in Mexico].

Background: The aim of this study was to identify determinants of infant mortality in rural areas in Mexico and recommend strategies for its decrease.

Methods: A study was conducted in a sample of 16 municipalities among those with the lowest index of human development. Infant deaths were identified through official data, records and through interviews with civil authorities, health workers and community leaders.

[Booster vaccination against Bordella pertussis during pregnancy].

During the last decades, the incidence of whopping cough, has been rising worldwide, despite the high coverage of the immunization programs. The highest mortality is found among children under 6 month of age, who are too young to have completed a primary vaccination series with three doses the pertussis vaccine, nevertheless this disease also affects adolescents and adults, who may only manifest mild symptomatology. Hence they do not get diagnosed or treated, becoming a potential community source of infection for young children.

[Towards the eradication of poliomyelitis: Mexico's achievements and challenges].

Since the strategies to eradicate polio were implemented, the incidence of paralytic polio has dropped dramatically. Four main strategies have greatly contributed: a) High immunization coverage rate with oral polio vaccine (OPV), b) Supplementary immunization activities during the National Immunizations Days c) An effective epidemiological surveillance system for acute flaccid paralysis (AFP) and d) Intensified immunization activities in high risk areas. Three countries remain polio endemic, nevertheless, any country has a potential risk of the virus importation from one of these endemic areas; an accidental release of poliovirus from a research or clinical laboratory, or from having a circulating vaccine-derived poliovirus in the environment.

Congenital syphilis, a reemergent disease in Mexico: its epidemiology during the last 2 decades.

Objective: To describe the epidemiologic profile of congenital syphilis in Mexico between 1990 and 2009.

Methods: The database of the General Direction of Epidemiology at the Ministry of Health in Mexico about congenital syphilis was reviewed. Data corresponding to the period between 1990 and 2009 were analyzed in every state of the Mexican republic.

[Analysis of the mortality due to diarrhea in younger children, before and after the introduction of rotavirus vaccine].

Objective: To analyze the mortality due to acute diarrhea in children younger than five years old, before and after the introduction of rotavirus vaccine in Mexico.

Material And Methods: Number of deaths and mortality rates due to acute diarrhea were compared by children's age and states' vaccine status using annual percentage differences before (2000-2005) and after (2006-2007) the introduction of the HRV.

Results: From 2000-2007, deaths due to acute diarrhea in children under five years of age dropped 42%.