Extended Data Fig. 4: Ferret competition transmission experiment clinical data.
From: The furin cleavage site in the SARS-CoV-2 spike protein is required for transmission in ferrets
(a, b) Changes in donor (a) and direct contact (b) ferret body temperatures during the duration of the infection. (c) Changes in ferret body weight (in percentage) during the duration of the infection. (d) Microneutralisation assay showing ferret post-infection serology. Threshold of detection was a neutralisation titre of 10 (dotted line). Serum taken 14 days post-infection. Representative repeat shown from (N = 2) independent repeats.
