know that the prevalence of these diseases is also high (although not as high as the homeless or IV drug users) worldwide among what seem to the healthy!!!
Occurrence of Bartonella henselae & B quintana in a healthy Greek population.
19.8% were seropositive to B. henselae
15% were seropositive to B. quintana
http://www.ncbi.nlm.nih.gov/pubmed/1...RVAbstractPlus