Un estudio ha estimado las muertes por cáncer que se producirán en la Unión Europea y el Reino Unido en 2023. Comparándolas con las observadas en 2018, estiman que se reducirán en un 6,5 % en hombres y un 3,7 % en mujeres de forma global. Sin embargo, en España aumentará la mortalidad por cáncer de pulmón en mujeres. Los resultados se publican en la revista Annals of Oncology. 

The deadline passed and after two marathon nights of meetings, the delegations of the UN member states have managed to reach an agreement to make the so-called Oceans Treaty - or BBNJ Treaty, Biodiversity Beyond National Jurisdiction - a reality. New York City has seen the fifth session of this conference bear fruit with an agreement on the wording of the text, seventeen years after the talks began and with negotiations stalled last August due to a lack of agreement. The Treaty aims to protect and regulate the use of areas beyond national jurisdiction, which account for more than 60% of the oceans, or almost half of the planet. Marine genetic resources and how to share these benefits has been one of the main stumbling blocks.

A study has analyzed the genetics of 302 dogs living in areas close to the Chernobyl nuclear power plant. According to the study, they show genetic differences according to the distance they live from the plant, which distinguish them from other dog populations. The results are published in the journal Science Advances.

The Centre for the Coordination of Alerts and Health Emergencies (CCAES) reported yesterday that last February Germany reported two cases of dengue (one confirmed and one probable), along with four cases compatible with epidemiological links, in residents of Germany who had travelled to Ibiza during the incubation period. One of the potential vectors of dengue is the Aedes albopictus mosquito, which was first detected in Ibiza in 2014. According to the CCAES, the risk of new autochthonous cases appearing in Ibiza, "at this time of low vector activity, is considered low".

In an interview with US television FOX News, FBI Director Christopher Wray said that, according to his office's assessment, "it is likely that the origin of the coronavirus pandemic was a leak from a laboratory in Wuhan, China". These statements follow media reports of a US Department of Energy report, accessed by the Wall Street Journal, that would also support "with low confidence" the leak hypothesis. Even so, a spokesman for the US National Security Council told AP that there is "no consensus" among intelligence agencies on the issue.

US scientists have found perfluoroalkylated and polyfluoroalkylated substances (PFASs) in sewage sludge from toilet paper waste. The research, published in the journal Environmental Science & Technology Letters, analysed the presence of these persistent and potentially harmful compounds in toilet paper rolls sold in North, South and Central America, Africa and Western Europe. These substances were compared with those detected in samples of sewage sludge from sewage treatment plants in the United States.

A study has associated the consumption of the sweetener erythritol with an increased risk of cardiovascular disease, specifically myocardial infarction and stroke. The data are published in the journal Nature Medicine.

A journalistic investigation by BMJ reporter Jennifer Block finds that more and more children and adolescents identify as transgender and are offered medical treatment, in particular in the United States. The reporter analyses scientific evidence showing this increase in the number of treatments, as well as the guidelines of US medical bodies. She also interviews experts from different countries, laying out the controversy among professionals about the scientific evidence used to make decisions about the initiation of treatment.   

A Swedish research team has successfully 'grown' a soft, electrically conductive polymer in various zebrafish and leech tissues, as well as in isolated mammalian muscle tissues, without damaging those tissues. The research is published in Science.

Analysis of the two asymptomatic cases of H5N1 avian influenza detected in Spain in autumn 2022 in workers at a poultry farm in Guadalajara has confirmed the theory that no actual infections occurred, but that both were in contact with genetic material of the virus found in the environment. Spain has recently modified its protocols, according to the analysis published in Eurosurveillance.