A COVID-19 vaccine mandate for domestic flights is not currently being considered by the Centers for Disease Control and Prevention (CDC), CDC Director Rochelle Walensky confirmed on Tuesday. “Certainly, domestic flights has been a topic of conversation but that is not something we’re revisiting right now,” Walensky told NPR when pressed on the issue. Walensky also elaborated on the CDC’s decision to cut its recommended isolation time for infected Americans in half—from 10 days to five if they are asymptomatic. “We are standing on the shoulders now of two years of science,” Walenksy told NPR of the new rules, explaining that “the vast majority of transmission occurs” around two days prior to the onset of symptoms and three days after. “So in that five day window is really when that transmission is happening.” Walensky acknowledged that although transmission can occur after the fifth day of isolation, the CDC made the decision to …