### Question
What is the definition of biological agent?


### Answer
The definition of **biological agent** is as follows in *18 U.S.C. § 2283*:

> any biological agent, toxin, or vector (as those terms are defined in section 178)

#### Citation:
  - *18 U.S.C. § 2283*
  - Heading: **PART I-CRIMES > CHAPTER 111-SHIPPING**

