Natural disasters and COVID-19: health worker preparedness and response Dewi Wahyuni, Syamsunasir, Adi Subiyanto, Anissa Nurur Rachmatika and Tri Winugroho E3S Web Conf., 331 (2021) 01007 Published online: 13 December 2021 DOI: 10.1051/e3sconf/202133101007