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Bacteriological Swabs

Br Med J 1969; 3 doi: (Published 23 August 1969) Cite this as: Br Med J 1969;3:450
  1. D. I. Bartlett,
  2. M. H. Hughes


    Streptococcus pyogenes survives poorly on plain cotton-wool swabs, whereas serum-dipped swabs permit its survival but also allow overgrouth by other bacteria and are likely to contain virus inhibitors. The use of swabs dipped in a solution of 20% bovine albumin (fraction V) and sterilized by steam is therefore recommended, since these permit bacterial survival without growth and are unlikely to contain virus inhibitors.