JEFFERSON CITY – The Missouri Department of Health and Senior Services authorized those who are 18 or older and fully vaccinated against COVID-19 to get a booster shot. “The data we released ... shows that vaccines are undisputedly saving lives,” department Director Donald Kauerauf said. “These vaccines are safe and effective in preventing serious illness. I would encourage all eligible adults to seek a booster to maintain a high level of protection, especially as we enter colder months, when instances of respiratory infections are more readily circulated. With the upcoming holidays, where you will come in contact with your loved ones, getting vaccinated is the way to prevent getting sick and unknowingly exposing others. Thousands of Missourians are also still choosing to receive their primary series of COVID-19 vaccinations in Missouri each week, so we are continuing to make progress as a state.”