The Clinical and Serological Response of Chickens to Certain Laryngotracheitis Viruses

Gwatkin, R. Some notes on avian diphtheria (chicken pox) Rept. Ont. Vet. Col., 1925, p 54. 9. Hinshaw, W. R. A survey of infectious laryngotracheitis of fowls. Calif. Agr. Exp. Sta. Bul. 520, 1931. 10. Hitchner, S. B. and P. G. White. A comparison of embryo and bird infectivity using five strains of laryngotracheitis virus. Poul. Sci. 37, 684, 1958. 11. May, H. G. and R. P. Tittsler Tracheo-laryngitis in poultry. Jour. Am. Vet. Med. Assoc. 67, 229, 1925. 12. Pulsford, M. H. Possible P.Q. type vaccination in infectious laryngotracheitis. Nature 172, 1193-1195, 1953. 13. Reed, L. J. and H. Muench. A simple method of estimating fifty percent end points. Am. Jour. Hyg. 27, 493-497, 1938. 14. Seddon, H. R. and L. Hart. The occurence of infectious larvngotracheitis in New South Wales. Aust. Vet. Jour. 11, 212, 1935. 15. Van Heelsbergen, T. Handbuck der Geflugelkrankheiten und der Geflugelzucht. Ferdinand Cobe Stuttgart, 1929, p. 262.