RT Journal Article SR Electronic T1 Sexually transmitted Shigella flexneri and Shigella sonnei in men who have sex with men JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP sextrans-2020-054589 DO 10.1136/sextrans-2020-054589 A1 Daniel Richardson A1 John Devlin A1 Colin Fitzpatrick A1 Nicolas Pinto-Sander YR 2020 UL http://sti.bmj.com/content/early/2020/09/14/sextrans-2020-054589.abstract AB