Photo by Bobjgalindo via Wikimedia Commons A common strep throat infection can trigger guttate psoriasis by altering the behaviour of key immune cells, according to a new study from Karolinska Institutet in Solna, Sweden. The findings, published in eBioMedicine , suggest how an infection can lead to sudden skin inflammation, particularly in children and young adults. In the study, the researchers analyzed blood and skin samples from patients with guttate psoriasis using singl