Epidemiology of Crimean-Congo Hemorrhagic Fever (CCHF) in Africa-Underestimated for Decades.

Crimean-Congo hemorrhagic fever (CCHF) is endemic in Africa, but the epidemiology remains to be defined. Using a broad database search, we reviewed the literature to better define CCHF evidence in Africa. We used a One Health approach to define the impact of CCHF by reviewing case reports, human and animal serology, and records of CCHF virus (CCHFV) isolations (1956-mid-2020).

[Can Chlamydia trachomatis human biovars cause abortion in cattle? An immunohistochemical study on a new host-pathogen relationship].

Chlamydiae, which are obligate intracellular bacterial pathogens, have been radiated from single-celled eukaryotes into multi-celled hosts during their evolution. Chlamydia trachomatis one of the important species in this group, is classified into three biovars as a result of their evolution. Two of those biovars, Trachoma and LGV, are pathogens only in humans.