Key result
Infectious laryngotracheitis remains a globally identified viral poultry disease first described in 1925.
This historical review outlines the early identification and global spread of Infectious Laryngotracheitis in poultry.
Historical ILT recognition informs veterinary diagnostics; leaves open needs for updated transmission studies in modern poultry systems.
The first account of laryngotracheitis, ILT, as a separate disease entity was written by May and Tittsler (1925) (97) who described an outbreak on a farm in Rhode Island in 1923. Many of the early workers (6,69,89), however, pointed out that the disease had probably existed in poultry in North America for some years before 1925. Outbreaks occurring in California in 1924 were reported by Beach(6), who called the disease infectious bronchitis. Gwatkin (66) recognized the existence of ILT in Canada in 1925, and the disease was reported in Holland by van Heelsbergen (129) in 1929. The disease was identified in Germany in 1932 (41), in Great Britain by Dobson (39) in 1935, in Australia by Seddon and Hart (118) in the same year, in Sweden by Magnusson (95) in 1940, and in Poland by Marek (96) in 1948. Beaudette (13) first showed that the disease was caused by a filtrable virus.
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F. T. W. Jordan (1966) conducted a review in Infectious Laryngotracheitis (ILT). Infectious laryngotracheitis was first described as a separate disease entity in poultry in 1925, subsequently identified globally, and shown to be caused by a filtrable virus.
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