“…In the case of UTIs caused by infrequent microorganisms with demanding growth, the use of flow cytometry can be very useful not only as a screening method prior to urine culture. In the presence of a negative culture on standard media in a symptomatic patient with high bacteriuria detected by cytometry, we suggest seeding the sample on additional culture media, a strategy that allows isolation of demanding pathogens such as Aerococcus spp or Actinotignum schaalii [ 9 ].…”