Vaccines are key component in the prevention and containment of diseases. It is vital that vaccines are carefully handled and kept in the correct conditions and at the proper temperatures at all times. The CDC enforces stringent guidelines for the storage and monitoring of vaccines.
When vaccine refrigeration is required, the temperature must remain between 2 °C and 8 °C with a set point at 5 °C. To ensure that the appropriate temperature is maintained, a vaccine vial monitoring system including a data logger is recommended. Data loggers can be configured by the user to take readings at particular intervals to create a complete overview and detailed record of the vaccine storage environment.
In order to assure accuracy of cold chain vaccine temperatures, the probe of the data logger must be kept in a liquid filled bottle (such as glycol) in the center of the refrigerator. This is ideally done with the probe continually remaining inside the refrigerator while the data logger body is outside of the refrigeration unit for instant access to current readings. The probe wire should have a small enough diameter to allow the door of the refrigerator to close upon it without impacting the integrity of the refrigeration seal.
Once data has been collected, by regulation, an electronic record should be retained for at least three years. The MadgeTech Data Logger software automatically saves all recorded data to an internal database file and provides extensive reporting tools to easily share information to satisfy validation needs.