The seroincidence of childhood Shigella sonnei infection in Ho Chi Minh City, Vietnam. oleh Nick K Jones, Trang Nguyen Hoang Thu, Ruklanthi de Alwis, Corinne Thompson, Ha Thanh Tuyen, Tran Do Hoang Nhu, Voong Vinh Phat, Pham Duc Trung, Phung Khanh Lam, Bui Thi Thuy Tien, Hoang Thi Diem Tuyet, Lu Lan Vi, Nguyen Van Vinh Chau, Nhi Le Thi Quynh, Stephen Baker