Cross-Reactive Antibodies to SARS-CoV-2 and MERS-CoV in Pre-COVID-19 Blood Samples from Sierra Leoneans oleh Rodrigo Borrega, Diana K. S. Nelson, Anatoliy P. Koval, Nell G. Bond, Megan L. Heinrich, Megan M. Rowland, Raju Lathigra, Duane J. Bush, Irina Aimukanova, Whitney N. Phinney, Sophia A. Koval, Andrew R. Hoffmann, Allison R. Smither, Antoinette R. Bell-Kareem, Lilia I. Melnik, Kaylynn J. Genemaras, Karissa Chao, Patricia Snarski, Alexandra B. Melton, Jaikin E. Harrell, Ashley A. Smira, Debra H. Elliott, Julie A. Rouelle, Gilberto Sabino-Santos, Arnaud C. Drouin, Mambu Momoh, John Demby Sandi, Augustine Goba, Robert J. Samuels, Lansana Kanneh, Michael Gbakie, Zoe L. Branco, Jeffrey G. Shaffer, John S. Schieffelin, James E. Robinson, Dahlene N. Fusco, Pardis C. Sabeti, Kristian G. Andersen, Donald S. Grant, Matthew L. Boisen, Luis M. Branco, Robert F. Garry