A CDC study published in 2005 in the Virology Journal, “Chloroquine is a Potent Inhibitor of SARS Coronavirus Infection and Spread” demonstrated that CQ quickly eliminated coronavirus in primate cell culture during the SARS outbreak. That study concludes: “We report . . . that chloroquine has strong antiviral effects on SARS-Coronavirus infection of primate cells . . . [both] before or after exposure to the virus, suggesting both prophylactic and therapeutic advantage.”15