We work in the fields of chicken, turkey (M. gallisepticum, M. synoviae, M. meleagridis, M. iowae) and waterfowl mycoplasmosis (M. anserisalpingitidis, M. anatis, M. anseris, M. cloacale). We study the epidemiology and pathogenesis of poultry mycoplasmosis, as well as participate in the description of novel species (Volokhov et al., 2020). We study the genomics of the different Mycoplasma species (Grózner et al., 2018) and develop methods for molecular epidemiology purposes (Bekő et al., 2019; Kreizinger et al., 2018). We conduct extensive research projects to determine the antibiotic susceptibility profiles (MIC) of the different species in Europe (Kreizinger et al., 2017) and worldwide (Morrow et al., 2020). We are studying the resistance genes and mutations (Bekő et al., 2020) as well as develop molecular assays for the rapid and cost-effective determination of the antibiotic susceptibility profiles of the different species (Bekő et al., 2020). We invent PCR assays for detection (Grózner et al., 2019) and develop DIVA (differentiating infected from vaccinated animals) tests (Sulyok et al., 2019). We intensely work on the development of novel avian Mycoplasma vaccines as well. We successfully developed a live, attenuated vaccine candidate against M. anserisalpingitidis (Bekő et al., 2022). The produced vaccine candidate was patent deposited at Leibniz-Institute DSMZ, Germany under ID number DSM 33810 and a patent was submitted under number P 21 00357.