Frequency-dependent selection can forecast evolution in Streptococcus pneumoniae. Author(s): Azarian T, Martinez PP, Arnold BJ, Qiu X, Grant LR, Corander J, Fraser C, Croucher NJ, Hammitt LL, Reid R, Santosham M, Weatherholtz RC, Bentley SD, O'Brien KL, Lipsitch M, Hanage WP|Journal: PLoS Biol|PMID: 33091022| October 2020 Predicting how pathogen populations will change over time is challenging. Such has been the case with Streptococcus pneumoniae, an important…