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  • Survival of Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis frozen in skim milk- tryptone-glucose-glycerol medium.

Survival of Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis frozen in skim milk- tryptone-glucose-glycerol medium.

Journal of clinical microbiology (2004-01-13)
Tarja Kaijalainen, Esa Ruokokoski, Pentti Ukkonen, Elja Herva
RÉSUMÉ

In STGG (skim milk, tryptone, glucose, glycerol) medium at -80 degrees C, Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis isolates survived for at least 3 years, and the same species have survived in nasopharyngeal swabs for at least 1.5 years. At -20 degrees C, S. pneumoniae and M. catarrhalis survived for 1.5 years, but H. influenzae survived for only 2 months.

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Millipore
Tryptone, Pancreatic digest of casein, Suitable for microbiology
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Millipore
Tryptone, Microbiologically tested.
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