As mpox has now been found in the EU, the race for an effective vaccine has accelerated, with a study failure but increased vaccine production from Europe. The U.S. NIH just released top-line results from a preliminary analysis of a placebo-controlled study of Siga Technologies Inc.’s antiviral, tecovirimat, showing it missed the primary endpoint of statistically significant improvement within 28 days post-randomization in time to lesion resolution for patients in the Democratic Republic of the Congo.