The last decade has seen a marked increase in the incidence of scabies in Spain. Esther Samper explains how this mite acts and how it affects scabies patients.

Poliomyelitis cases have increased globally in the last year. The oral polio vaccine is very effective and acts on the first line of defence.

Sickness behaviours are far from being exclusive to humans; they have been found in virtually all animals in which they have been studied.

The WHO published recommendations on how to name new infectious diseases to avoid stigmatising a country, community, or economic sector.

Nutritional epidemiology currently studies the diet-disease relationships. In this review, we analyse the impact of diet on health and the importance of dietary factors in the prevention of non-communicable diseases.

Maurice Hilleman is probably the scientist who has prevented the highest number of deaths and illnesses from infection in the history of medicine. He and his team obtained or improved more than 25 vaccines against viruses and bacteria.

Although the coronavirus is a microbe, the author uses two animal analogies to explain the sudden and unexpected (or otherwise) appearance of phenomena such as COVID-19, but also other «unexpected» disasters of an economic, social, or political nature.

Most probably, the current coronavirus¹ pandemic represents the uncertain epilogue of an epidemiological period marked by the renewed prominence of the infectious disease in the last decades of the twentieth century

The threat of infectious diseases has been constant in the history of humankind. 75 % of new emerging human infectious diseases in the last thirty years have an animal origin, and 17 % are transmitted by a vector.