Next Monday sees the start of COP29 in Baku, the capital of Azerbaijan, a summit marked by Donald Trump's victory as president of the United States on Tuesday. His denial of climate change and his commitment to fossil fuels during his previous term in office will weigh down a meeting from which no major agreements are expected and from which experts are calling for greater ambition. 

Chronic pain is a public health problem that affects almost one in six people in Spain, with very different origins and characteristics. Specialists in psychology and pain explain what it is, how it is treated, what consequences it has for those who suffer from it and how to learn to live with it.

In Rwanda, according to the latest ECDC data, 25 cases and 11 deaths have been detected in what is already the third largest outbreak of the Marburg virus to date. The WHO considers the overall risk to be low and possible imported cases from Belgium and Germany - reported only yesterday in Hamburg - have proved to be false alarms. What is of concern is the national and regional spread of a virus for which mortality can be as high as 88% and for which there is no treatment or vaccine. In this article we answer the main questions.

The regulatory agencies for medicines in the United States and Europe have issued statements informing about a possible risk of developing certain types of tumors following CAR-T cell immunotherapy treatment. What do we know so far? What is the real risk? Does the benefit-risk balance still hold? Has anything changed after these alerts? We answer these questions with expert opinions and the data currently available. 

The impact of animal abandonment goes beyond the pets who suffer it, it is a public health, safety and funding issue as well. Although there have been some improvements in recent years, the experts consulted agree that the system continues to fail. In this guide, we analyze what has changed, who does this issue affect, and what must be improved.

International health organisations are warning about the spread in Europe of mosquito species that transmit diseases such as dengue fever. In Spain, where they are already widespread across much of the country, the Centro de Coordinación de Alertas y Emergencias Sanitarias (CCAES) warns of the risk of West Nile virus, and says that the summer is expected to be complicated. In this guide, we bring together information to understand this public health issue. 

The third part of the National Plan for Surveillance and Control of Vector-borne Diseases is presented today, focusing on ticks, parasitic mites that cause serious diseases. Of these, the two of greatest concern in Spain are Lyme disease and Crimean-Congo haemorrhagic fever. Cases are expected to increase, but so far there has been no surveillance. International health authorities have also warned of the risks of Lyme disease in connection with the European Football Championship being held in Germany in recent weeks. 

Starting June 17, the Ministry of Health will begin using a new, more rigorous alert system based on 182 meteosalud zones instead of 52 provinces. The aim is to make the plan more effective, inform the population when necessary, and ultimately save lives.

E-cigarettes, vapes, pods, mods... The popularity of these devices continues to grow, especially among young people. According to a Spanish survey, more than half of the adolescents aged 14 to 18 have used them at some point. Vaping control varies from country to country: in Spain, vaping products have been regulated since 2017 and the new anti-smoking plan aims to equate their legislation to that of tobacco, while the United States imposes fewer restrictions. In this brief guide, we explain what is known and not known on controversial issues such as the safety of electronic cigarettes, their risks or whether they are useful to quit tobacco.

This week, Spain’s Ministry of Health launched a process to develop a Royal Decree on the medical use of cannabis, assuring that it will be "a rigorous measure based on the best scientific evidence available.” The goverment is conducting a public consultation until 4 March to gather the opinions of citizens, civil society organisations, professional associations and scientific societies. In this explainer, we attempt to answer the main questions that arise regarding the medical use of cannabis.