Alvarez-Larrotta, Catalina, Eliana María Arango, and Jaime Carmona-Fonseca. “Negative Immunomodulation by Parasitic Infections in the Human Response to Vaccines”. The Journal of Infection in Developing Countries 12, no. 10 (October 31, 2018): 812-823. Accessed January 24, 2020. https://jidc.org/index.php/journal/article/view/10337.