How would you classify a tube containing a pure culture of Staphylococcus spp. being transported for subtyping?

How would you classify a tube containing a pure culture of Staphylococcus spp. being transported for subtyping?

• A. Category A substance
• B. Category B substance
• C. Non-infectious substance
• D. Unknown

Answer: (B)

Infectious substances for transport are categorized by risk into high-risk Category A and all other infectious substances as Category B. A tube with a pure culture of Staphylococcus spp. is indeed infectious, but it does not automatically meet the high-risk criteria that would push it into Category A, which covers agents capable of causing life-threatening or permanently disabling disease. For most Staphylococcus cultures used for subtyping, the appropriate classification is Category B, assigned to infectious substances that require proper containment and packaging but are not among the most dangerous categories. So this would be categorized as Category B (UN 3373).

Infectious substances for transport are categorized by risk into high-risk Category A and all other infectious substances as Category B. A tube with a pure culture of Staphylococcus spp. is indeed infectious, but it does not automatically meet the high-risk criteria that would push it into Category A, which covers agents capable of causing life-threatening or permanently disabling disease. For most Staphylococcus cultures used for subtyping, the appropriate classification is Category B, assigned to infectious substances that require proper containment and packaging but are not among the most dangerous categories. So this would be categorized as Category B (UN 3373).