In Tidona C, Darai G eds.
Extreme sizes are known from 50 to 200 nm in diameter.
Proceedings of the National Academy of Sciences of the United States of America.
This new group of viruses were named coronaviruses after their distinctive morphological appearance.
Infectious bronchitis virus is one of a number of strains of the species.
Leland David Bushnell and Carl Alfred Brandly isolated the virus that caused the infection in 1933.