Amazon is very strict in dealing with intellectual property infringement, and the specific number of store closures is related to the severity and frequency of the infringement. Amazon will take different punitive measures based on the nature and frequency of the infringement, including but not limited to deleting infringing products, warnings, suspending accounts, and even closing accounts.

In terms of the number of infringements, if a seller is found to have infringed on the intellectual property of others for the first time, Amazon will delete the infringing products and send a warning email to the seller. If the seller corrects and removes the infringing products in a timely manner, it will generally not lead to the closure of the store. However, if the seller is found to have infringed again or multiple times and cannot provide sufficient evidence to prove that it has not infringed, the store may face more severe penalties, including suspension or even closure of the account.

Therefore, in order to avoid the risk of store closure due to intellectual property infringement, sellers should carefully review product information to ensure that there is no infringement of others' intellectual property rights and comply with Amazon's copyright policy.

Sellers can also consider purchasing copyrights directly from copyright owners, or working with intellectual property owners to obtain authorization and conduct business.

The specific number of store closures and penalties may change due to Amazon's policy updates.

Therefore, sellers should regularly review Amazon's policies and regulations to ensure that their business complies with platform requirements.