A meta-analysis of 42 studies from 15 countries, including Spain, concludes that the covid-19 pandemic caused learning delays in school-aged children and a loss of knowledge equivalent to 35% of the learning of a school year. The research, published in Nature Human Behaviour, highlights that these effects persisted over time.
A study published in PLOS Medicine estimates that the implementation of sugary drinks taxes in the UK in 2018 was associated with an 8 % reduction in obesity in English girls aged 10-11, particularly among those living in more deprived areas.
Reactions: Academic outcomes of IVF-conceived girls and boys do not differ from those conceived naturally
A study published in the journal PLOS Medicine concludes that the development and academic outcomes of girls and boys conceived with in vitro fertilisation (IVF) are no different from those of children conceived naturally. The analysis is based on data from two national assessments in Australia, including more than 585,000 children born between 2005 and 2014 (more than 11,000 conceived by IVF). The first assessment measured the physical and emotional and cognitive health of children aged 4-6 years; the second focused on the numeracy and verbal skills of schoolchildren aged 7-9 years.
A study published in NEJM that followed a cohort of more than 300 transgender and non-binary youth, aged 12-20, for two years concluded that hormone therapy led to improvements in their symptoms of depression and anxiety.
According to estimates by the United Nations Inter-Agency Group for Child Mortality Estimation (UN-IGME) published by UNICEF, in 2021 some 5 million children died before their fifth birthday, and another 2.1 million children and young people did it between the ages of 5 and 24. Additionally, 1.9 million babies were stillborn during the same period.
Reaction: Physical exercise associated with fewer symptoms of depression in children and adolescents
Physical activity is associated with significant reductions in depressive symptoms in children and adolescents, according to a systematic review and meta-analysis published in JAMA Pediatrics that included 21 studies with 2,400 participants. The largest decreases in these symptoms were found in those aged 13 years and older.
Reactions to the increase in 'Streptococcus pyogenes' infections in the UK and the situation in Spain
In recent weeks, the UK Health Safety Agency has detected an unusual increase in infections with Streptococcus pyogenes bacteria. At least 13 children under the age of 15 have died from this pathogen, which is responsible for mild infections but also for more serious conditions such as invasive disease. The Spanish Society of Paediatric Infectious Diseases has reported that there have been some deaths in Spain - the Community of Madrid has reported two deaths - and is analysing whether there has been an unusual increase in cases.
The UK Health Safety Agency (UKHSA) has detected an unusual increase in Streptococcus pyogenes infections in the last month. This bacterium is responsible for mild infections, but also for more serious conditions such as scarlet fever and, above all, invasive disease. The British authorities have raised the alarm after at least eight children died from this pathogen. In Spain, the Spanish Society of Paediatric Infectious Diseases has reported that there have also been some deaths and is analysing whether there has been an unusual increase in cases.
A study in Spanish children, with follow-up from pregnancy to adolescence, has found an association between children's exposure to pesticides and fungicides and earlier breast development in girls and genital development in boys. The work has been carried out by the University of Granada (UGR), the Institute for Biosanitary Research (ibs.GRANADA) and CIBERESP (ISCIII).
In a briefing organised by the Science Media Centre Spain, Amparo Larrauri and Francisco Pozo, researchers at the Health Institute Carlos III, explained how three respiratory viruses are coexisting this autumn: influenza virus, respiratory syncytial virus (responsible for most bronchiolitis) and SARS-CoV-2.