I want to know the answer to the following question:
How many new classes of antibacterial antibiotics was introduced in the late 2000's/
All the background I'm provided with is that "Following a 40-year hiatus in discovering new classes of antibacterial compounds, four new classes of antibacterial antibiotics have been brought into clinical use in the late 2000s and early 2010s: cyclic lipopeptides (such as daptomycin), glycylcyclines (such as tigecycline), oxazolidinones (such as linezolid), and lipiarmycins (such as fidaxomicin).". Is that enough to answer the question?
Answer: yes