“You’re kidding me!” Sanne de Jong, a nursing assistant, said when she was told she had COVID-19 again in July. MIRANDA DE JONG More people are getting COVID-19 twice, suggesting immunity wanes quickly in some By Jop de VriezeNov. 18, 2020 , 12:55 PM Science’s COVID-19 reporting is supported by the Pulitzer Center and the Heising-Simons Foundation. In late June, Sanne de…