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Volume 6, Number 2—April 2000

Research

Competence of American Robins as Reservoir Hosts for Lyme Disease Spirochetes

Dania Richter*†Comments to Author , Andrew Spielman*, Nicholas Komar*, and Franz-Rainer Matuschka*†
Author affiliations: *Harvard School of Public Health, Boston, Massachusetts, USA; and †Charité, Medizinische Fakultät der Humboldt-Universität zu Berlin, Germany

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Table 2

Infectivity for laboratory mice of Lyme disease spirochetes that had previously infected American robins

Avian host Murine host
Infecting nymphs
Xenodiagnostic ticksa
Infecting nymphs
Xenodiagnostic ticks
Bird no. No.ticks %engorged No. examined % infected Mouse no. No.ticks % engorged No. examined % infected
1 12 83.3 18 83.3 1 6 100 10 90
2 12 100 21 95.2 2 6 83.3 10 100
3 12 100 22 77.3 3 6 100 10 100
4 12 100 17 88.2 4 6 83.3 10 100

aXenodiagnostic ticks that had engorged on each bird were used to infect the corresponding mouse.

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