07 Jul 2023 --- Swedish BioGaia has unveiled results from a study evidencing its probiotic Protectis to increase the human body’s immune response to COVID-19. The biotech company claims that it holds the potential for long-term protection, but only when used as a supplement to vaccination. Nutrition Insight speaks with Robert Brummer, one of the researchers behind the study and professor and pro-vice-chancellor of Food & Health at Örebro University, Sweden.