Observations on the growth of the nonpathogenic Kazan strain of Treponema pallidum in embryonated hens' eggs of various ages.
D000818:Animals; D001686:Biological Phenomena; D002645:Chickens; D004531:Eggs; D005260:Female; D010829:Physiological Phenomena; D013142:Spirochaeta; D013180:Sprains and Strains; D014210:Treponema pallidum
SPIROCHAETA PALLIDA