Over half of Las Cruces 'mega event' vaccinations canceled due to Johnson & Johnson pause Michael McDevitt, Las Cruces Sun-News LAS CRUCES – The state pause on the Johnson & Johnson COVID-19 vaccine means a "mega" vaccination event slated for this Saturday in Las Cruces, which originally planned to vaccinate 6,000 people across two vaccination sites, will be much smaller, with more than half of the planned vaccinations canceled. On Tuesday, the Food and Drug Administration and Centers for Disease Control and Prevention recommended a pause on using the single-shot Johnson & Johnson vaccine while they review several cases of blood clotting "out of an abundance of caution." Six women, ages 18 to 48, out of over 6.8 million doses administered in the U.S. experienced a rare and severe type of blood clot — cerebral venous sinus thrombosis.