Biomaterial Database

[Evaluation of survival of bacteria on dry swabs and transport systems (author's transl)]. 1977

F Mandler, and D Sfondrini

The survival of bacteria on dry swabs varied from twenty pro cent of organisms alive to no viability at four hours after the inoculation. Cotton-wool swabs highly reduced survival of bacteria; alginate or albumin swabs were less toxic for Gram-positive bacteria, charcoal swabs for Gram-negative bacteria. Transport systems allow certain organisms to remain viable as long as 24--48 hours. The quality and accuracy of any bacteriological culture depends greatly upon obtaining a proper specimen. Cotton-wool swabs are to be employed only when cultures are made immediately after collection, dry swabs--charcoal, albumin coated or calcium alginate--when cultures are made within four hours. For longer periods of time only transport systems are to be employed.

UI	MeSH Term	Description	Entries
D001419	Bacteria	One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.	Eubacteria
D001431	Bacteriological Techniques	Techniques used in studying bacteria.	Bacteriologic Technic,Bacteriologic Technics,Bacteriologic Techniques,Bacteriological Technique,Technic, Bacteriological,Technics, Bacteriological,Technique, Bacteriological,Techniques, Bacteriological,Bacteriologic Technique,Bacteriological Technic,Bacteriological Technics,Technic, Bacteriologic,Technics, Bacteriologic,Technique, Bacteriologic,Techniques, Bacteriologic
D013048	Specimen Handling	Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.	Specimen Collection,Collection, Specimen,Collections, Specimen,Handling, Specimen,Handlings, Specimen,Specimen Collections,Specimen Handlings
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor