https://www.rtbf.be/info/regions/brabant-wallon/detail_coronavirus-fabriquer-des-masques-pour-aider-ceux-qui-en-ont-besoin-d-accord-mais-pas-n-importe-comment?id=10459261&fbclid=IwAR3CXCt4QYvUpL88-NfU7oY4w1w7ipf2wJVK8GbxD-wgF9hFkzqcHCvz34o
https://sciencetonnante.wordpress.com/2020/03/12/epidemie-nuage-radioactif-et-distanciation-sociale/
