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Kim H. und Mitarbeiter, Plant-based diets, pescatarian diets and COVID-19 severity: a population-based case-control study in six countries, British Medical Journal, Nutrition Prevention and Health, Ausg. 4 von Juni 2021, online: https://nutrition.bmj.com/content/early/2021/05/18/bmjnph-2021-000272

113

Soil Bacteria can boost Immune System, NBC News vom 13.04.2017, online: http://www.nbcnews.com/id/18082129/ns/health-live-science/t/soil-bacteria-can-boost-immune-system/#.WaWBHNF8uM8

114

Yang X. und Mitarbeiter, Mycobacterium vaccae as Adjuvant Therapy to Anti-Tuberculosis Chemotherapy in never-treated Tuberculosis Patients: A Meta-Analysis, PLOS one – A Peer Reviewed Open Access Journal, Ausg. 6 von 2011, online: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3167806/

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Yang X. und Mitarbeiter, Mycobacterium vaccae Vaccine to prevent Tuberculosis in High Risk People: A Meta-Analysis, The Journal of Infection, Ausg. 60 von Mai 2010, S. 320–330, online: https://www.ncbi.nlm.nih.gov/pubmed/20156481

115

Matthews D. M. und Jenks S., Ingestion of Mycobacterium vaccae decreases anxiety-related behavior and improves learning in mice, Behavioural Processes, Ausg. 96 vom Juni 2013, S. 27–25, online: https://linkinghub.elsevier.com/retrieve/pii/S0376635713000296

116

Rook G., цитируется по: Harry Dayantis, Bacterial Immunization prevents PTSD-like symptoms in mice, UCL Online, London’s Global University vom 17.05.2016, online: http://www.ucl.ac.uk/news/news- articles/0516/170516-bacteria-prevent-ptsd

117

Dayantis H., Bacterial Immunization prevents PTSD-like symptoms in mice, UCL Online, London’s Global University vom 17.05.2016, online: http://www.ucl.ac.uk/news/news-articles/0516/170516-bacteria-prevent-ptsd

118

Bartens W., Stress führt zu Entzündungen im Körper, ganz ohne Keime, Süddeutsche Zeitung vom 13.01.2017, online: www.sueddeutsche.de/gesundheit/medizin-stress-fuehrt-zu-entzuendungen-im-koerper-ganz-ohne-keime-1.3330430

119

Segerstrom S. C. und Miller G. E., Psychological Stress and the Human Immune System: A Meta-Analytic Study of 30 Years of Inquiry, Psychological Bulletin, Ausg. 130 von Juli 2004, online: www.ncbi.nlm.nih.gov/pmc/articles/PMC1361287/

120

Wang Y. und Mitarbeiter, Preexisting Mental Disorders Increase the Risk of COVID-19 Infection and Associated Mortality, Frontiers of Public Health vom 09.08.2021, online: www.frontiersin.org/articles/10.3389/fpubh.2021.684112/full