Following booster shots recommendations made by the Centers for Disease Control and Prevention (CDC), some colleges are now requiring boosters for students and staff wanting to return to campus. On Monday, the CDC doubled down on its recommendation on boosters, saying all adults should get a booster shot. “Today, CDC is strengthening its recommendation on booster doses for individuals who are 18 years and older,” CDC director Dr. Rochelle Walensky said in a statement. “Everyone ages 18 and older should get a booster shot either when they are six months after their initial Pfizer or Moderna series or two months after their initial J&J vaccine,” Walensky said, adding that the emergence of the Omicron variant further emphasizes the importance of vaccination and boosters. On Tuesday, the first case of the Omicron variant in America was confirmed in California. On Wednesday, University of Massachusetts Amherst Chancellor Kumble Subbaswamy announced that the university requires …