In English: https://www.bio-technopark.ch/en/news-en/valneva-and-limmatech-announce-first-vaccination-in-phase-2b-human-challenge-study-of-tetravalent-shigella-vaccine-candidate-s4v2/

Auf Deutsch: https://www.bio-technopark.ch/news/limmatech-und-valneva-fuehren-erste-shigellose-impfung-durch/