(Gabriel Keane) Former FDA commissioner and current Pfizer board member Scott Gottlieb took to Twitter over the weekend to educate followers about a new variant of COVID-19, described by the ominous monikers “delta plus” and “AY.4.” Gottlieb warned that the latest variant could have “partial immune evasion,” which was cited as a reason for taking booster shots during the “delta variant” panic earlier this year.