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Items 217-228 of 246
Serratia marcescens
From £343.00
Shiga toxin (stx1) producing Escherichia coli
From £503.00
Shiga toxin (stx2A) producing Escherichia coli
Shigella (all species)
Simian Virus 40
Spondweni Virus
£343.00
St. Louis encephalitis virus
Staphylococcus aureus
Staphylococcus epidermidis
Streptococcus mutans
Streptococcus pneumoniae
Streptococcus pyogenes