In African countries during vaccination campaigns or outreach activities in distant places, traditional cold boxes used for vaccine transport may stay cold for a maximum of about four days (if not opened frequently) in ambient temperatures of around 30°C. Health workers some times need to carry frozen ice packs for distribution too. Vaccine carriers used by health workers for campaigns and routine outreach sessions traditionally have a cold life of less than one day. A major challenge facing small, remote health facilities with limited access to equipment maintenance and repair services is to keep vaccines at proper temperatures for much longer periods of time during transport and storage without exposing vaccines to freezing temperatures.
If car battery (connected through cigarette lighter socket) operated cold boxes are available, will these help vaccinators during distant outreach activities or during campaigns especially in Africa where teams may have to travel for few days to reach the communities? Currently no WHO pre-qualified car battery operated cold boxes are available. While in market you can find domestic cold boxes with refrigeration and freezing compartments.