HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Kemp, H. A. Articles by Wright, H. E. Search for Related Content PubMed Articles by Kemp, H. A. Articles by Wright, H. E.

Relapsing Fever in Texas

IV. Ornithodorus Turicata Duges: A Vector of the Disease¹

Ornithodorus turicata Duges is a common vector of relapsing fever in Texas. It appears to have a fairly wide distribution over the state but is more common to the south central part where it is found in sandy caves. The life history does not appear to differ very much from that of other members of the same genus. Once infected the tick remains so for life. All stages are infective and infection may be produced merely by the act of biting. As indicated by Wolbach's studies on Br. duttoni and Br. kochi in O. moubata, ingested spirochetes make their way very quickly to practically every organ of the body. The large numbers found in connective tissue seem to indicate multiplication without, possibly, any definite cycle of development. Infection may be hereditary in this tick. O. turicata and the relapsing fever spirochete of Texas appear to be rather closely adapted one to the other.

¹ Read at the Twenty-ninth Annual Meeting of the American Society of Tropical Medicine at Richmond, Virginia, November 15, 16 and 17, 1933.