a reproductive doctor holds a sterile container with sperm and egg in his hands. cotsnept artificial insemination

medicine medical staphylococcus streptococcus enterococcus gonococcus doctor hands biomaterial laboratory microscopy infections contagion flora sterile probeswab eco fertilization insemination egg ovum ovule embryo fetus implantation donor biologist infertility endometriosis procedure genetic immunology reproductive sperm