Can I be infected with TB and not be sick? ^ Back to top AFB (Acid-Fast Bacillus) Smear and Culture AFB (Acid-Fast Bacillus) Smear and Culture AFB (Acid-Fast Bacillus) Smear and Culture ^ Back to top ^ Back to top What is the difference between MDR-TB and XDR-TB? AFB (Acid-Fast Bacillus) Smear and Culture When is it ordered? How is it used? The Test What is the difference between MDR-TB and XDR-TB? ^ Back to top ^ Back to top ^ Back to top ^ Back to top AFB (Acid-Fast Bacillus) Smear and Culture ^ Back to top AFB (Acid-Fast Bacillus) Smear and Culture ^ Back to top ^ Back to top ^ Back to top ^ Back to top When is it ordered? Can I be infected with TB and not be sick? How is it used? What does the test result mean? The Test ^ Back to top ^ Back to top What does the test result mean? Is there anything else I should know? AFB (Acid-Fast Bacillus) Smear and Culture Is there anything else I should know?