Moussatché, Nissin, Clarissa R. Damaso, and Grant McFadden. “When Good Vaccines Go Wild: Feral Orthopoxvirus in Developing Countries and Beyond”. The Journal of Infection in Developing Countries 2, no. 03 (June 1, 2008): 156–173. Accessed May 1, 2024. https://jidc.org/index.php/journal/article/view/19738346.