2. Touching raw chicken and then cooked chicken without changing gloves
'Touching raw chicken and then cooked chicken without changing gloves' is MOST LIKELY promote bacterial contamination.
Touching the raw chicken with wearing gloves invites bacteria and other to stick on hand gloves.
Later touching and cooking that chicken or any things, might transfer bacteria from hand gloves to that chicken or anything.
In short, bacteria from Raw chicken to Hand gloves. Then, Hand gloves to cooked chicken. It is is MOST LIKELY promote bacterial contamination.
So, it is advised to remove/change the hand gloves after touching the raw chicken.