Which fluoroquinolone is known for its broad-spectrum activity against gram-positive and gram-negative bacteria?

Fluoroquinolones are a class of antibiotics that are known for their broad-spectrum activity, which means they can effectively treat infections caused by a wide range of bacteria, both gram-positive and gram-negative.

Levofloxacin, Ciprofloxacin, and Moxifloxacin all belong to this class and have varying effectiveness against different types of bacteria. Levofloxacin is particularly effective against many gram-positive organisms, including some strains of Streptococcus pneumoniae. Ciprofloxacin is more potent against gram-negative bacteria, especially Pseudomonas aeruginosa, but it has limited activity against certain gram-positives. Moxifloxacin, on the other hand, has robust activity against both gram-positive bacteria and a variety of gram-negative organisms, which enhances its versatility in treating various infections, including respiratory and skin infections.

In the context of broad-spectrum activity, the ability of these antibiotics to cover both types of bacteria allows clinicians to use them in situations where the exact pathogen involved is unknown or when polymicrobial infections are suspected. Therefore, the choice that includes all of these fluoroquinolones accurately reflects their overall spectrum of activity, justifying the assertion that they are all known for their broad-spectrum effects.