The importance of healthy eating for our well-being is scientifically proven and having a varied diet goes without saying.

If aliens were to examine a human, they would think we were just slavish organisms designed to feed microbes and carry them around. Our bodies contain ten times more bacteria than cells , and there are an estimated 3.

Leishmaniasis is a tropical disease known in Europe because it affects dogs. It is caused by the Leishmania parasite carried by sandflies . However, several types of the parasite also affect humans in several regions in the world.

The life that inhabits the world’s oceans has almost infinite variety. It remains an untapped source of diversity.

Ragnar Löfstedt is an expert on risk management at King’s College London , UK, and the editor-in-chief of the Journal of Risk Research . He spoke to youris.

Bacteria and other microorganisms that cause infections are remarkably resilient and can develop ways to survive drugs meant to kill or weaken them.

“We need our own kind of Kyoto treaty for antibiotics: the point is, we should treat antibiotics as a non-renewable source”, says professor Antonio Cassone, research director of the Italian Istituto Superiore di Sanità.