[yorkietalkjilly]

Aggressive dogs will usually initiate barking, growling, showing teeth to get people/dogs to move away because they are fearful or unsure of them. Sounds like she was upset by that experience of the family members, felt as if she had no control of what was happening and it made her unsure around people she doesn't know. Inviting people into your home one at a time to slowly desensitize her to people could help. Have the person come in, don't look at her, talk to or touch her, sit and visit with you while totally ignoring her and then leaving in 5 minutes or so could start to get her used to strangers being around and teach her there is no harm in them. After three or four have done this visiting-while-ignoring visit with you daily for two weeks, have each person now start to toss out treats on the floor near them from time to time for her though still strictly ignoring her. After another couple of weeks of that, a visitor could see if she will start to act friendly, approach or sniff by placing a hand down by the side of a chair, maybe with a treat in it. Allow them to briefly interact with her if she does approach but leave fairly quickly after she initiates their attention and to leave her wanting more. In time, with more visitors and time, she should regain her enjoyment of having people visit and interact with her.