Volume 30, Number 7—July 2024
Dispatch
Body Louse Pathogen Surveillance among Persons Experiencing Homelessness, Canada, 2020–2021
Table 2
Testing of fourth instar body lice pools, divided by sex and associated C) for 3 Bartonella genes, from a person experiencing homelessness in Winnipeg, Manitoba, Canada*
Pool | No. lice/pool | Sex | Ct values |
||
---|---|---|---|---|---|
Bartonella ITS3 gene | B. quintana yopP gene | B. quintana fabB gene | |||
8 | 6 | Female | 21.5 | 23.1 | 22.7 |
9 | 7 | Female | 24.2 | 25.2 | 24.9 |
10 | 7 | Female | 24.6 | 25.8 | 25.4 |
11 | 7 | Female | 24.8 | 25.7 | 25.5 |
12 | 7 | Female | 25.6 | 26.6 | 26.3 |
13 | 7 | Male | 27.2 | 28.1 | 27.6 |
14 | 7 | Male | 27.6 | 27.4 | 27.2 |
15 | 7 | Male | 25.2 | 26.1 | 25.7 |
16 | 7 | Male | 27.6 | 28.6 | 28.2 |
17 | 8 | Male | 28.1 | 29.1 | 28.6 |
*Genes used to determine species identities: PHUM540560, body lice gene distinguishing body lice from head lice; ITS3, internal transcribed spacer, identifies Bartonella to genus level; yopP, hypothetical intracellular effector gene, identifies B. quintana to species; fabB, 3-oxoacyl-synthase gene, identifies B. quintana to species; rpoB, RNA polymerase β subunit gene, identifies Acinetobacter spp.