Question

1. what organizations are involved in the us and worldwide when disease begins to spread?

○ cdc
○ who
○ county health departments
○ all of these

Explanation:

The CDC (Centers for Disease Control and Prevention) is involved in the US in disease - spread response. The WHO (World Health Organization) is involved worldwide. County Health Departments also play a role in local disease - spread management in the US. So all these organizations are involved.

Answer:

D. All of these