We wish to share the following for additional contributions.
Proem: In public health, timely identifying the right problem is doing half the job and giving solution is finishing complete job – as stated by Chicago University who felicitated with best podium presentation award for identifying and solving problem of Hep-B birth dose administration in a rural Medical College.
Govt of India is extraordinarily committed both for the nation and the world, even donated vaccine to the needy countries. India approved utilization of Russian made SputnikVTM Vaccine – needs to be stored at a temperature of -18 0C to -20 0C, currently administered by private CVCs. GoI is gearing up to include it in the National COVID vaccination programme stating that “-18 0C to -20 0C cold chain is not a deterrent because that is also the temperature at which the polio vaccine [OPV] is stored”. However OPV is “amphibious”, open vial policy [Multi Dose Vial Policy-MDVP] is applicable decorated with Vaccine Vial Monitor [VVM-2]. As per study, it can undergo a number of freezing-thawing cycles without necessarily losing its initial potency. Vaccine that has been thawed 3 or 4 times can still be refrozen as long as the temperature has at no time exceeded 8 0C and the aggregate of periods during which the vaccine was thawed is no greater than 24 hours. But SputinkVTM Vaccine once thawed, should not be refrozen for eventual use as per current Sputnik & DRL SOPs.
In our country almost all planning units are provided with ILR [Ice Lined Refrigerator] for keeping UIP vaccines requiring 2 to 8 0C and Deep Freezers [DF] are primarily meant for making ice-packs between -15 to -20 0C. OPV is stored in minus temperature at regional / state & higher stores in the walk-in freezers below -15 0C. In all the planning units it is stored in the ILRs between +2 & +8 0C; whereas the currently available Sputnik needs to be stored at -25 0C, thawing is allowed only once as per SOPs.
The photos and the details are attched for more clarity.
Acknowledgement: I sincerely thank both private and public sectors for sharing the photos and their practical experiences.