People who are fully vaccinated against the virus that causes COVID-19 rarely contract the illness and when they do, it’s typically a no or low-symptom case, the director of the Centers for Disease Control and Prevention says. “For those breakthrough infections that can you know rarely occur, for the most part they are resulting in asymptomatic or very mild disease,” Dr. Rochelle Walensky, the CDC’s director, said on MSNBC’s “The Rachel Maddow Show.” “What we’re seeing about those infections is that they tend to have a lower amount of virus, they tend to be asymptomatic, they tend to be mild. And we believe that that lower amount of virus really means that they can’t give it to anybody else,” Walensky added on CBS’ “This Morning” on Friday. Newly published studies show that people who are fully vaccinated can feel comfortable removing their masks, Walensky emphasized. Maddow, a liberal host, told Walensky that …