From my point of view only your husband can really stop this. I have never know Vizslas to be vicious breeds.
They key is with your husband.
To start off you need to get him to stop the dog growling because if the dog listens to him then he needs to stop it. You and anyone else the dog doesn't like should also engage in friendly and fun activities with the dog.
For example if the dog loves walks then you should take it for a walk every day. Also be very friendly and never look threatening.
Mabye also seek professional help.
They key is with your husband.
To start off you need to get him to stop the dog growling because if the dog listens to him then he needs to stop it. You and anyone else the dog doesn't like should also engage in friendly and fun activities with the dog.
For example if the dog loves walks then you should take it for a walk every day. Also be very friendly and never look threatening.
Mabye also seek professional help.