Correct option is C
Correct Answer: (c) Chloramphenicol
Explanation:
· Chloramphenicol is a broad-spectrum antibiotic, meaning it is effective against a wide range of both gram-positive and gram-negative bacteria.
· It works by inhibiting protein synthesis in bacteria and is used for serious infections like typhoid fever and meningitis.
Information Booster:
· Broad-spectrum antibiotics target diverse bacterial groups, making them useful when the exact pathogen is unknown.
· Chloramphenicol can cross the blood–brain barrier, making it effective for CNS infections.
· It must be used cautiously due to potential side effects like bone marrow suppression.
Additional Knowledge :
· (a) Erythromycin:
· A narrow-spectrum antibiotic mainly effective against gram-positive bacteria.
· (b) Penicillin G:
· Also narrow-spectrum, effective mostly against gram-positive bacteria; destroyed by stomach acid, hence given by injection.
· (d) Gentamycin:
· Broadly active against gram-negative bacteria, but not classified as a true broad-spectrum antibiotic across both bacterial types.