A.B.C

Thank you for your answer! This thing got much bigger during the weekend. The problem is that we don't have more cells from this cell line and it's not easy to get. We already had problem with them a few months ago because they stopped working and starting dieing and now that they were getting fine again this thing appear and we really don't know what it is and how to get rid of it.

This is a picture of the contamination that it appear in my cells last week. I don't know how to get rid of it and i have no idea of what it is. Can anyone help me? i really need to get this cells good as soon as possible to start an important experiment and all the ones we have are contaminated with this thing.