There are three people in the image. The person on the left is wearing a white shirt and is holding a clear plastic tube with a blue cap. The person in the middle is also wearing a white shirt and is holding a similar clear plastic tube with a blue cap. The person on the right is wearing a black jacket and is holding a clear plastic tube with a blue cap as well. All three individuals appear to be engaged in some form of medical or laboratory activity, possibly related to blood transfusions or similar procedures.