Електронска микрографија на мачји калицивирус, FCV. Photograph: CDC / Dr Erskine Palmer. Source: https://wwwn.cdc.gov/phil/Details.aspx?pid=198. Licence: Public domain; CDC attribution required by source notice (https://www.cdc.gov/Other/imagereuse.html). Contained in the previous outer dimensions using neutral margins; no clinical content cropped out and no source detail upscaled.