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  • Title: Comparison between nasal swabs and nasopharyngeal aspirates for, and effect of time in transit on, isolation of Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Moraxella catarrhalis.
    Author: Carville KS, Bowman JM, Lehmann D, Riley TV.
    Journal: J Clin Microbiol; 2007 Jan; 45(1):244-5. PubMed ID: 17079497.
    Abstract:
    We assessed the impact of the use of nasal swabs or nasopharyngeal aspirates and the time from specimen collection to storage at -70 degrees C on bacterial isolation. Haemophilus influenzae was isolated significantly less often from swabs than from nasopharyngeal aspirates. Samples in transit for >3 days were half as likely to grow Streptococcus pneumoniae and H. influenzae as those in transit for < or =3 days. There was no statistically significant difference for either Moraxella catarrhalis or Staphylococcus aureus.
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