福奇：未来或需每年接种新冠疫苗，像流感疫苗一样

array(1) { [434834]=> array(2) { [2]=> array(5) { [0]=> string(6) "美国" [1]=> string(9) "传染病" [2]=> string(12) "流感疫苗" [3]=> string(12) "新冠疫苗" [4]=> string(12) "突发疫情" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }