VIDEO 1

Bacteria adhered to both sperm heads and tails.

...E.Coli is one of the most frequent microorganisms isolated from the ejaculate (huerta and All.)
Several reports describe sperm agglutination and immobilization affecting motility characteristics (Mekveld et All. 2001, ...).

Infected spermatozoa
IMSI / ICSI
5 first days of the life