VACCINE

This study tested whether getting a different COVID-19 vaccine for the second shot (instead of the same one) is safe and boosts immunity. 100 healthy adults who had already received one dose of the AZD1222 vaccine were randomly assigned to get either the same vaccine or a differe…

This study tested the CoviVac COVID-19 vaccine in 200 healthy adults aged 60 and older. Researchers checked how safe the vaccine was and how well it boosted the immune system. The goal was to see if the vaccine could help prevent COVID-19 in this age group.

This study tested a vaccine called Triplex® in 94 adults who have both HIV and cytomegalovirus (CMV). The goal was to see if the vaccine is safe and helps the immune system control CMV. Participants received two shots of the vaccine or a placebo over 4 weeks and were followed for…

This study looked at whether adding fiber (like inulin) to a low-fiber diet could increase helpful gut bacteria and improve how well the body responds to a typhoid vaccine. Sixty healthy adults with low fiber intake took either fiber or a placebo, then received the vaccine. Resea…

This study looked at whether exposure to PFAS chemicals (found in some water supplies) can weaken the body's immune response to the tetanus and diphtheria booster vaccine. Twenty adults from a community with known PFAS exposure received the vaccine and had blood and saliva sample…