Universal influenza vaccination: a Mexican Expert Position Paper.

Objective: Influenza is a costly disease for the population. It is a cause of seasonal morbidity and mortality, epidemics and pandemics or syndemics. Given the variability of the virus, surveillance systems are implemented in order to update the strains and include them in the annual influenza vaccine.

[Specialty care in the transformation process].

The scientific research goals developed and applied beyond their own frontiers, by the National Institutes of Health and High Specialty Hospitals, are presented regarding the specialized medical care of excellence on the field of global health, in benefice of the Mexican population. Maternal mortality as well as malnutrition, and the lack of micronutrients in the pregnant mother and child, put them in disadvantage to face future physical and mental diseases. Low weight at birth, prematurity, and overweight during childhood are factors that can trigger the the development of the metabolic syndrome, with all its consequences on physical and mental health.

Streptococcus pneumoniae serotypes isolated from the middle ear of Mexican children diagnosed with acute otitis media.

Objective: The aim of this study was to identify the etiology and the serotypes of S. pneumoniae (Sp) in Mexican children with acute otitis media (AOM).

Materials And Methods: The study includessamples frompatientsdiagnosed with AOM at the Federico Gomez Children's Hospital of Mexico (2002-2003),with positive culture for Sp bacteriologically confirmed in middle ear fluid obtained by tympanocentesis.

Invasive pneumococcal disease in a third level pediatric hospital in Mexico City: epidemiology and mortality risk factors.

Objective: To assess the epidemiologic characteristics of invasive pneumococcal diseases (IPD) among a population in a pediatric hospital in Mexico City and analyze mortality-related risk factors, serotype distribution and antibiotic susceptibility related to S.pneumoniae.

Material And Methods: We performed a retrospective review of IPD cases at a third level pediatric hospital between 1997-2004.

[Streptococcus pneumoniae serotype replacement in nasopharyngeal colonization in children vaccinated with PCV7 in Mexico].

Objective: To assess the impact of pneumococcal conjugate vaccine (PCV7) immunization on pneumococcal nasopharyngeal colonization with S. pneumoniae (SPN).

Material And Methods: We studied two groups with different vaccination schedules, group I (2-6 months of age) 3+1 and group II (7 -11 months) 2+1, with a booster at 15 months.

Prevalence of Neisseria meningitidis carriers in children under five years of age and teenagers in certain populations of Mexico City.

Objective: To carry out a pilot study to discover the frequency of colonization in healthy children under five years old and teenagers, as well as the distribution of the different N. meningitidis serogroups isolated from nasopharyngeal samples collected from the population under study.

Material And Methods: The population included youth between 15 and 19 years old living in social rehabilitation centers (SRC) and university teenagers (UT) as well as children under the age of five attending day care centers (DCC) in Mexico City.

Randomised equivalency trial comparing 2.5% povidone-iodine eye drops and ophthalmic chloramphenicol for preventing neonatal conjunctivitis in a trachoma endemic area in southern Mexico.

Aim: To evaluate the effectiveness of 2.5% povidone-iodine eye drops (PIED) compared with ophthalmic chloramphenicol (OC) for preventing neonatal conjunctivitis.

Methods: 2004 neonates were enrolled from three rural hospitals in a trachoma endemic area.

Streptococcus pneumoniae isolates in healthy children attending day-care centers in 12 states in Mexico.

Objective: The aim of this study was to determine the prevalence of asymptomatic nasopharyngeal carriage of Streptococcus pneumoniae, which is a major factor in the transmission of this bacterium.

Material And Methods: Nasopharyngeal cultures were performed on children attending 32 day-care centers in 12 states in Mexico.

Results: Streptococcus pneumoniae was isolated from the nasopharynx of 829 out of 2,777(29.