Publications by authors named "S Fernandez-Balbuena"

Background: We estimated the association between the level of restriction in nine different fields of activity and SARS-CoV-2 transmissibility in Spain, from 15 September 2020 to 9 May 2021.

Methods: A stringency index (0-1) was created for each Spanish province ( = 50) daily. A hierarchical multiplicative model was fitted.

View Article and Find Full Text PDF

The monthly retrospective search for unreported acute flaccid paralysis (AFP) cases conducted as a complementary component of the Spanish AFP surveillance system identified a case of AFP in a child admitted in Spain from Senegal during August 2021. Vaccine-derived poliovirus 2 was identified in the stool in September 2021. We present public health implications and response undertaken within the framework of the National Action Plan for Polio Eradication and the Public Health Emergency of International Concern.

View Article and Find Full Text PDF

Introduction: We assessed poor linkage to HIV care in a sample of HIV positive men who have sex with men (MSM) diagnosed in Spain.

Methods: From 2012 to 2013 we recruited a sample of MSM mainly through gay-dating websites. Poor linkage to care was defined as receiving the first CD4 count >3 months after HIV diagnosis.

View Article and Find Full Text PDF

Introduction And Aims: Amphetamine-type stimulants (ATS) are a putative cause of stroke with high abuse potential. We aim to systematically review the association between use of ATS and stroke.

Design And Methods: To assure a sensitive search strategy, a broad definition of ATS was used.

View Article and Find Full Text PDF

Background: Shortly after the approval of an over-the-counter HIV self-test in the US, we conducted a study to estimate the proportion of men who have sex with men (MSM) in Spain who knew that unauthorized HIV self-tests could be purchased online, and the proportion that had already used these tests, as well as their socio-demographic and behavioural correlates.

Methods: Between September 2012 and February 2013, MSM users of gay dating websites were invited to complete an online questionnaire. We calculated estimates of the knowledge and use of unauthorized HIV self-testing and assessed the associated factors by rare event logit regression models.

View Article and Find Full Text PDF