Preservation of Streptococcus pneumoniae quality control strains using chocolate agar blocks in glycerol at minus 70

Sindhulina Chandrasingh1, Mahalaxmi Subramaniam1, Sreeja Nair1

  • 1Department of Microbiology, Bangalore Baptist Hospital, Bellary Road, Hebbal, Bengaluru, 560024, Karnataka, India.