Accumulation of fluoroquinolones in macrophages and polymorphonuclear leukocytes results in activity against intracellular organisms as:Question 11Answera.Listeriab.Streptococcusc.Staphylococcusd.E. coli

Fluoroquinolones are a type of antibiotic that are known to accumulate in certain types of white blood cells, specifically macrophages and polymorphonuclear leukocytes. This accumulation allows them to be effective against intracellular organisms, which are bacteria that live inside cells.

a. Listeria: Listeria is a type of bacteria that can exist as an intracellular organism. Fluoroquinolones are effective against Listeria.

b. Streptococcus: Streptococcus is a type of bacteria that is typically extracellular, meaning it does not live inside cells. However, some strains can invade cells, and in these cases, fluoroquinolones may be effective.

c. Staphylococcus: Like Streptococcus, Staphylococcus is typically extracellular but can invade cells. Fluoroquinolones can be effective against these intracellular Staphylococcus bacteria.

d. E. coli: E. coli is typically an extracellular bacteria, but certain strains can invade and live inside cells. In these cases, fluoroquinolones may be effective.

In conclusion, fluoroquinolones can be effective against all of these bacteria when they exist as intracellular organisms. However, their effectiveness can vary depending on the specific strain of bacteria and its ability to invade cells.