Higgitt, Roxanne L.; Van Schalkwyk, Ockert Louis; De Klerk-Lorist, Lin-Mari; Buss, Peter Erik; Caldwell, Peter; Rossouw, Leana; Manamela, Tebogo; Hausler, Guy A.; Hewlett, Jennie; Van Helden, Paul David; Parsons, Sven D.C.; Miller, Michele A.
(Centers for Disease Control and Prevention, 2019)