Maqaal joornaal ah oo ay qoreen qorayaal kala duwan, cinwaanna looga dhigay Asymptomatic iyo Presymptomatic SARS-CoV-2 Infekshannada dadka deggan Xarunta Kalkaalinta Xirfadlaha Daryeelka Muddada Dheer - Degmada King, Washington, oo ku taariikhaysan Maarso 2020.