Twitter blocked an entire medical journal’s website for publishing one study proving the efficacy of Ivermectin as a treatment for COVID-19. The antiparasitic drug has shown promise as a preventative measure for the coronavirus.Karl Denninger, known on Twitter as Tickerguy, posted a link to a study published in the European Journal of Medical and Health Sciences that concluded that Ivermectin could be effective as pre-exposure prophylaxis (PreP) against COVID-19. Only 6.9% of the study participants tested positive for the virus after taking Ivermectin. On the other hand, 73.3% of those who did not take the drug tested positive.In recent times, Twitter has a tendency to block traffic to sites with information it does not agree with, using bogus warning pages. In fact, Twitter not only blocked that one study but also the entire ejmed.org website.