Improved sensitivity of direct microscopy for acid-fast bacilli: sedimentation as an alternative to centrifugation for concentration of tubercle bacilli

Research output: Contribution to journalArticle


There is a great need for improved methods for the diagnosis of tuberculosis by techniques that are appropriate for control programs in low-income countries. Liquefaction of sputum with sodium hypochlorite followed by concentration of bacilli through overnight sedimentation significantly increases the sensitivity of direct microscopy, and this method could be an alternative for diagnostic centers not equipped with a centrifuge.


  • Håkan Miörner
  • Gunilla Ganlöv
  • Zemene Yohannes
  • Yengusnesh Adane
External organisations
  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Microbiology in the medical area
Original languageEnglish
Pages (from-to)3206-3207
JournalJournal of Clinical Microbiology
Issue number12
Publication statusPublished - 1996
Publication categoryResearch
Externally publishedYes