What spirochete is commonly detected in hematology laboratories before a physician suspects an infection?

The spirochete that is commonly detected in hematology laboratories before a physician suspects an infection is Borrelia spp. This genus includes several species that are notable for causing diseases such as Lyme disease and relapsing fever, which are often associated with distinctive symptoms that may lead to laboratory testing. In veterinary and human diagnostics, Borrelia species can be detected through serological testing or PCR before clinical symptoms manifest significantly.

Treponema spp. also has clinical significance, particularly Treponema pallidum, which is the causative agent of syphilis; however, it is less commonly identified in routine hematology settings compared to Borrelia. Campylobacter spp. and Leptospira spp. are other genera of bacteria, but they are typically associated with gastrointestinal and environmental infections, respectively, and they do not primarily fall under spirochete detection in hematology laboratories prior to clinical suspicion of infection.