TY - RPRT T1 - Prevalence and incidence of antibodies against SARS-CoV-2 among primary healthcare providers in Belgium during one year of the covid-19 epidemic: Study protocol Y1 - 2020 A1 - Samuel Coenen A1 - Niels Adriaenssens A1 - Beatrice Scholtes A1 - Els Duysburgh KW - Belgium KW - COVD-19 KW - primary healthcare workers KW - SARS-CoV-2 KW - seroprevalence study PB - Sciensano CY - Brussels, Belgium ER -