Human activities and zoonotic epidemics: A two-way relationship. the case of the COVID-19 pandemic

This article will try to highlight the two-way relationship of human activities with the emergence of epidemics-pandemics, through a multi-level approach to the COVID-19 pandemic, the challenges that humanity faces, and the need to adopt policies at a global level to prevent future pandemics. © 2022 Cambridge University Press. All rights reserved.

Could saliva play a role in controlling the Covid-19 pandemic?

The pneumonia outbreak observed in Wuhan, China, in December 2019 evolved into a general multi-system infection. This is attributed to a virus, from coronaviruses, the SARS-CoV-2 or 2019-nCoV the increased transmissibility of which lead to a spread across the world and the subsequent declaration of a pandemic. Saliva and in particular saliva droplets of different density play a significant role in the Covid-19 infection spread and contamination of the general population, leading to the development of severe acute respiratory syndrome in affected patients.