Spillovers have almost tripled in the past 40 years, thanks to the human being's action on the environment and climate change. The spotlight is focused not only on coronaviruses, but also on the avian virus (photo: DKosig via Getty Images) "We are truly an animal species, inextricably linked to the others," said David Quammen, author of the essay by 2013 Spillover, in which a pandemic is anticipated and not surprisingly picked up by many today, on the unfortunate occasion of the
Covid-19 pandemic. The spillover is the so-called jump of a virus or another pathogen from one species to another: for the new coronavirus, the jump probably took place from the bat - as is also thought in Sars - or from the pangolin. But history is studded with spillovers that have become unfortunately famous: in addition to Sars-Cov-1 and Sars-Cov-2, there is Mers-Cov, responsible for Mers, the avian influenza virus, Ebola, l 'hiv and many others, including the measles virus.
