Tuberculosis Transmission Mode

Steps:

• Recall tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis bacteria.
• Identify primary transmission: TB spreads through airborne droplets from coughing or sneezing by infected individuals.
• Evaluate choices against known facts: Match transmission method and pathogen type.
• Select option aligning with bacterial, airborne nature of TB.

Why A is correct:

• TB transmits via airborne respiratory droplets, as defined by CDC guidelines on infectious disease spread.

Why the others are wrong:

• B: TB is bacterial, not viral, so "airborne transmission virus" misidentifies the pathogen.
• C: TB is caused by bacteria, not a virus.
• D: TB primarily affects lungs, causing cough and fever, not a characteristic rash.

Final answer: A