Köhler-Forsberg O, et al. - In this nationwide prospective cohort study, the researchers investigated whether there was an association between infections during childhood and scholastic achievement (SA). Between 1987 and 1997, 598,553 children born in Denmark and their parents were involved. It was observed that infections, especially those requiring hospitalizations, were correlated with subsequent affected cognitive ability as indicated by lower SA and these findings might also be explained by missed school days or socioeconomic factors correlated with the susceptibility of acquiring infections.