Bacteriological swabs.
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.
D000998:Antiviral Agents; D001431:Bacteriological Techniques; D003470:Culture Media; D003368:Gossypium; D010949:Plasma; D012710:Serum Albumin, Bovine; D013227:Steam; D013242:Sterilization; D013297:Streptococcus pyogenes / Q000254:growth & development / Q000302:isolation & purification*
D000998:Antiviral Agents; D003470:Culture Media; D013227:Steam; D012710:Serum Albumin, Bovine