Preclinical Evaluation of Chicken Egg Yolk Antibody (IgY) Anti-RBD Spike SARS-CoV-2—A Candidate for Passive Immunization against COVID-19 oleh Hendris Wongso, Isa Mahendra, Wyanda Arnafia, Idar Idar, Muhammad Yusuf, Arifudin Achmad, Holis A. Holik, Ahmad Kurniawan, Iim Halimah, Maula E. Sriyani, Teguh H. A. Wibawa, Muhamad B. Febrian, Yanuar Setiadi, Eva M. Widyasari, Isti Daruwati, Crhisterra E. Kusumaningrum, Toto Subroto