Swab transport in Amies gel followed by frozen storage in skim milk tryptone glucose glycerol broth (STGGB) for studies of respiratory bacterial pathogens.

Nasopharyngeal carriage studies are needed to monitor changes in important bacterial pathogens in response to vaccination and antibiotics. Commercial swab transport followed by transfer to skim milk tryptone glucose glycerol broth for frozen storage is an option for studies of Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis.