Figure 3. Expression of CD105, CD117, CD34 in umbilical cord samples from women with Covid-19. A, B - Expression of CD105 in fibroblast-like cells of Wharton's jelly in women with uncomplicated pregnancy (A) and with severe Covid-19 (B), x400; C, D - Expression of CD117 in fibroblast-like cells of Wharton's jelly in women with uncomplicated pregnancy (C) and with severe Covid-19 (D); x400; E, F - Expression of CD34 in histological structures of the umbilical cord in women infected with Covid-19: (E) negative staining in fibroblast-like cells; CD34+ positive staining in umbilical vein endothelium (F), Dx200, Fx25.