Describe an incident that happened at the markets​

In multiple sclerosis, the immune system destroys the substance that coats and protects nerve fibers in the brain and spinal cord. this causes inflammation and injury to the nerves, and the axons don't conduct impulses as well.

Larry is taking a walk in the park, the pollen in the air makes him sneeze consistently what line of defense is his immune system exhibiting

What are 3 important public health tools for addressing flu outbreaks and why