A new study seeking to shed light on real-world COVID-19 vaccine effectiveness shows a widening gap between Moderna’s and Pfizer’s vaccines four months after the second shot. Among the 3,600-plus U.S. adults without immunocompromising conditions who were enrolled in the study, vaccine effectiveness against COVID-19 hospitalization within the first four months of being fully inoculated was higher for the Moderna vaccine (93 percent) than the Pfizer-BioNTech vaccine (88 percent) and the J&J vaccine (71 percent), according to the Centers for Disease Control and Prevention (CDC). While the Moderna vaccine’s effectiveness dropped slightly to 92 percent after 120 days of full vaccination (with a median of 141 days), Pfizer’s declined significantly to 77 percent (with a median of 143 days), the researchers found. Because only a limited number of patients received the J&J shot more than 120 days before the onset of illness, its effectiveness was not stratified by time in …