Figure 1A. Antibody detection of pigs experimentally inoculated
with SARS-CoV-2.
Detection of antibodies against the spike protein (days 0, 14 and 22 pi)
by ELISA in sera from animals inoculated endotracheally (No. 8-10),
intramuscularly (No. 13-15) and intravenously (No. 18-20).