| comparison of direct and modified direct complement-fixation and agar-gel precipitin methods in detecting chlamydial antibody in wild birds. | detection of chlamydial antibody in serums of wild birds was compared for the following methods: direct complement-fixation (dcf), modified dcf (mdcf), and agar-gel precipitin (agp). the birds species used were great-tailed grackles (cassidix mexicanus), common grackles (quiscalus quiscula), brown-headed cowbirds (molothrus ater), bronzed cowbirds (tangavius aeneus), and mourning doves (zenaida macroura). the birds were either inoculated with an isolate of chlamydia psittaci obtained originally ... | 1978 | 100098 |