SARS-CoV-2 seroprevalence in pregnant women during the first three COVID-19 waves in The Gambia oleh Ramatoulie E. Janha, Alasana Bah, Hawanatu Jah, Fatima Touray, Yahaya Idris, Saikou Keita, Yassin Gaye, Samba Jallow, Tisbeh Faye-Joof, Baboucarr Njie, Rachel Craik, Nuredin I. Mohammed, Peter von Dadelszen, Umberto D'Alessandro, Anna Roca