[A descriptive overview of cases of congenital cytomegalovirus at a tertiary hospital between 2017 and 2023].

Objective: Cytomegalovirus infection (CMV) is the most common congenital infection in developed countries. The aim of our study was to describe the features of the children that have congenital CMV infection at our hospital for the last 6 years.

Methods: A retrospective descriptive study was designed that included all the children with CMV congenital infection that were diagnosed at tertiary hospital of Madrid Community between 2017 and 2023.

Immunogenicity of the Conjugate Meningococcal ACWY-TT Vaccine in Children and Adolescents Living with HIV.

Background: Children and adolescents living with HIV (CALHIV) are at high risk of meningococcal infections and may present lower immune responses to vaccines. The objectives of this study were to assess the immunogenicity of the quadrivalent Men ACWY-TT vaccine (Nimenrix) in CALHIV after a two-dose schedule and to describe possible HIV-related factors that may affect the immunogenic response.

Methods: A multicenter prospective study was designed, including CALHIV followed in five hospitals in Madrid, between 2019 and 2021.

Consensus document of the Spanish Society of Paediatric Infectious Diseases and the Advisory Committee on Vaccines of the Spanish Association of Pediatrics for vaccination of immunosuppressed individuals.

The number of people with immunosuppression is increasing considerably due to their greater survival and the use of new immunosuppressive treatments for various chronic diseases. This is a heterogeneous group of patients in whom vaccination as a preventive measure is one of the basic pillars of their wellbeing, given their increased risk of contracting infections. This consensus, developed jointly by the Sociedad Española de Infectología Pediátrica (Spanish Society of Pediatric Infectious Diseases) and the Advisory Committee on Vaccines of the Asociación Española de Pediatría (Spanish Association of Paediatrics), provides guidelines for the development of a personalised vaccination schedule for patients in special situations, including general recommendations and specific recommendations for vaccination of bone marrow and solid organ transplant recipients, children with inborn errors of immunity, oncologic patients, patients with chronic or systemic diseases and immunosuppressed travellers.

Group A Streptococcus invasive infection in children: Epidemiologic changes and implications.

Group A Streptococcus (GAS) can cause a broad array of clinical manifestations and complications. Recently, in post COVID-19 postpandemic months, there has been an increased incidence and severity of invasive infections in the pediatric age group in Spain and other European countries with high morbidity, affecting mostly to young children, associated with seasonal peaks in incidence of viral respiratory pathogens. The increased in incidence and severity has not been associated with predominant GAS strains, but rather to the lack of immunity to both GAS and common viral respiratory infections due to isolation measures to prevent COVID-19.