Which statements accurately describe prescription drugs? check all that apply. they must be authorized by a healthcare provider. each one has the same effects on different people. they can be purchased over-the-counter. they can be safely shared with family members. they must be purchased from a pharmacy.

What link in the chain of transmission is described in the paragraph? sarah has been eating and sleeping poorly. she was just diagnosed with pneumonia. tests showed the illness was caused by streptococcus pneumoniae. in the chain of transmission, sarah is the (blank) , and streptococcus pneumonia is the (blank).