How did Ebola information spread on Twitter: broadcasting or viral spreading?

BMC Public Health, vi, (Article number: 438 (2019)) S., 2019
Liang, Hai, Isaac Chun-Hai Fung, Zion Tsz Ho Tse, Jingjing Yin, Chung-hong Chan, Laura E. Pechta, Belinda J. Smith, Rossmary D. Marquez-Lameda, Martin I. Meltzer, King-Wa Fu
ISSN: 1471-2458 (online)