“Littermate syndrome” caused puppy attach on a 10 year old daughter

“Littermate syndrome” refers to a number of behavioural issues that occur in puppies beyond the age of eight to 10 weeks of age, when puppies are usually separated and placed in separate homes. The parents of a two-year-old girl who sustained life-changing injuries in a puppy attack are warning others about so-called “littermate syndrome”, which could be to blame. Littermate Syndrome can affect dogs of ANY BREED and often causes aggression in breeds that are not normally prone to aggressive behaviours. Should the dogs be treated as wild animals in every instance ?