What is Botulism? I think my friends mom has some of those symptoms. Difficulty swallowing, double vision and dry mouth.

Botulism is a. serious paralytic illness caused by a nerve toxin that is produced by a particular type of bacteria. Foodborne botulism is caused by eating foods that contain the botulinum toxin. Wound botulism is caused by toxin produced from a wound infected with Clostridium botulinum. The symptoms your friend's mom is having are definitely cause for alarm and she should get to the emergency room ASAP!