| avian spirochetosis: natural transmission by argas (persicargas) sanchezi (ixodoidea: argasidae) and existence of different serologic and immunologic types of borrelia anserina in the united states. | a mild strain of borrelia anserina was transmitted to chicks by an argasid tick identified as argas (persicargas)sanchezi dugès, 1887. disease was transmitted regularly to chicks less than 2 to 3 weeks old, and rarely to chicks 4 weeks old or older. this spirochete isolate was demonstrated to be immunologically and serologically diverse from an isolate obtained earlier in arizona. this is the first report of transmission of b anserina by a(p) sanchezi and of the presence of different serologic a ... | 1979 | 453680 |