Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12866-024-03246-z/MediaObjects/12866_2024_3246_Fig7_HTML.png)
Reactivity of sera from two SPF-rabbits (Zimmermann Kaninchen, ZIKA) immunized with UVC inactivated C. burnetii NMI after the second and fourth booster. Plates were coated with 2.5 × 107 GE/ml of NMI. Serum samples from two rabbits were serially diluted and traced with a horseradish-conjugated goat anti-rabbit antibody. As positive control (PC) a polyclonal rabbit serum against heat-inactivated whole cell lysate of C. burnetii NMI and as negative control (NC) a polyclonal SPF-rabbit serum was used. Results represent the average of two independent experiments