Changes

* [http://www.midi-madagasikara.mg/societe/2020/10/26/declin-et-extinction-de-la-biodiversite-menace-sur-lavenir-de-lacces-aux-medicaments/ Déclin et extinction de la biodiversité : Menace sur l’avenir de l’accès aux médicaments] / auto-translation: [https://translate.google.com/translate?sl=en&tl=fr&u=http%3A%2F%2Fwww.midi-madagasikara.mg%2Fsociete%2F2020%2F10%2F26%2Fdeclin-et-extinction-de-la-biodiversite-menace-sur-lavenir-de-lacces-aux-medicaments%2F Decline and extinction of biodiversity: Threat to the future of access to medicines] Midi Madagasikara, 26 October 2020

* [https://www.bbc.com/news/health-54696873 Covid: Antibodies 'fall rapidly after infection'] BBC News, 28 October 2020