Laboratory refrigerator temperatures explained, which reagents, sera, vaccines, and blood products belong at 2-8 degrees C, why freezing destroys some of them, and the storage rule...
Laboratory freezer temperature ranges explained, which biological samples belong at -20°C, -80°C, or in liquid nitrogen, why freeze-thaw damages specimens, and how to manage freeze...
Fastidious pathogens die in days on a plate, and N. meningitidis is killed by refrigeration. How to store meningitis isolates on Dorset medium, chocolate slants, and silica gel.
A disc that has lost potency reads as falsely resistant, denying a working drug. How to store antimicrobial discs: cold chain, freezing β-lactams, and desiccant.
How labs keep bacterial stock cultures alive and unchanged over time, and why choosing the wrong preservation method can silently ruin a QC strain.
