Chlamydiosis of dogs and cats in modern cities Vitaliy Nedosekov, Alexander Martyniuk, Tatyana Stepanova, Valeria Yustyniuk, Irina Gulyukina, Anna Parshikova and Elena Drozdova E3S Web Conf., 258 (2021) 04004 Published online: 20 May 2021 DOI: 10.1051/e3sconf/202125804004