Fig. 1

a Growth on blood agar slant (Oxoid®) supplemented with 5% defibrinated sheep blood. First-passage 21-day-old LipBh_4 isolate of B. henselae genogroup II, genotype Fizz/Cal1. Slants had been kept at 35 °C in a 5% CO2 atmosphere. B. henselae appears as circular brownish colonies, with humid aspect, sticking to the agar. b Light microscopy images (100×) of Gimenez-stained LipBh_4 isolate of B. henselae genotype II