“It’s a problem because young people are out and about and social,” said Dr. Ashish Jha, dean of the Brown University School of Public Health. “They’re more likely to be interacting with more people than a 75-year-old” and could spread the virus if they aren’t vaccinated. Some 38% of people ages 18 to 29 years received at least one vaccine dose, the lowest rate among any age group eligible to get immunized, according to a U.S. Centers for Disease Control and Prevention report late last month. The elderly had the highest vaccination rate, at 80%... The federal government recently launched media campaigns on popular social media apps such as Facebook, Twitter and Instagram, alongside major gaming services like Riot Games and Twitch. The White House said it also has provided training sessions and educational materials to colleges and universities in a bid to motivate more students to get vaccinated. As part of those efforts, the administration has partnered with colleges and universities to establish a so-called student corps that organizes regular calls with young adults that are designed to educate them and their peers about vaccines.