TechNet-21 - Forum

This forum provides a place for members to ask questions, share experiences, coordinate activities, and discuss recent developments in immunization.

Discussions tagged Cold box / vaccine carrier

UNICEF/WHO guidance on Decommissioning and safe disposal of CCE now available in ARABIC and RUSSIAN

Dear TechNet-21 community,

Further to the publication of the English and French versions of the Decommissioning and safe disposal of cold chain equipment guidance earlier this year (available here, we are glad to share with you that the Arabic and Russian versions of the document are now available in the TechNet-21 Resource Library.

To access these documents, please click on the following li...

Live-Tweeting from the PQS Manufacturer Consultation on Tuesday, July 10th!

Dear TechNet-21 Colleagues,

WHO PQS will be engaging with a selected group of PQS product manufacturers on Tuesday, July 10th to discuss and agree on a path forward for some significant proposed changes to immunization cold chain equipment standards. Although this is a closed event, the PQS Team and TechNet-21 are partnering to bring you exclusive insights from the meeting and I will be guest tweeting from the TechNet-21 Twitter account, sharing highlights and pictures from this first...

Revision of vaccine storage code in the new model of ILR & Keeping ice-packs in brick style

Dear viewers

We wish to share the attached revised version vaccine storage code in the new model of Ice Lined Refrigerator, supplied recently to the planning units in Karnataka and India. Karnataka is going to practice soon and we hope the whole country may also follow the same as it is practicable.

Keeping ice-packs in brick style practically feasible way is also demonstrated.


With best regards

Holla n team

KVG Medical College


SPOTLIGHT: Partnership with Red Cross in Lebanon for Off-grid solar generator with lithium battery storage backpack

Green Energy Limited has developed an off-grid solar generator with lithium battery storage backpack. It is designed to provide continuous off-grid electricity to refugees, disaster victims, medical clinics, schools and matches domestic electricity requirement. We have been conducting a project in Lebanon since April with the Red Cross, testing the performance of our backpack in various settings. 

Attached is our latest off-grid solar backpack with lithium battery storage. To stay con...

Low-cost freeze-protected carrier

A new PQS freeze protected vaccine carrier has been approved. The incorporation of this new carrier would solve a serious problem but at a considerable cost. PATH estimates that 2 million carriers would have to be replaced.

Several years ago we had been working on a freeze protection method which incorporated water as a phase change barrier between the stored vaccines and the ice packs. This appears to be the same freeze protection mechanism incorporated in the PQS approved carrier. T...

First vaccine carrier approved by World Health Organization to prevent vaccine freezing during transport commercially available

PATH’s Freeze-Safe innovation sets a new benchmark, helping protect vaccine potency, reducing health worker burden, and providing cost savings to health systems

Seattle, February 7, 2018—This week, the first commercially available freeze-free vaccine carrier will begin introductory field trials in Nepal. This follows the World Health Organization (WHO) announcement that the Indian-made carrier using PATH’s “Freeze-Safe” reference design passed WHO Performance, Quality, and Safety (PQS...

Vaccine Transport Supplies Recommendation


I am in need of the following items and I am looking for supplier recommendations. Just need a few of each for R&D.


Empty vaccine vials with stoppers Glycol solution for vaccine vials Portable vaccine cooler (used to carry vaccine to remote locations)


Thanks for the help



Realtime Cooler Temperature & Location Monitoring in the Field


I am trying to solve the following problem...

We have small medical teams that travel to remote locations, to deliver vaccines to patients.

Many of the routes are through jungle, mountains, dessert, etc and take several hours or longer to reach to destination.

The teams use motorbikes, and walking through rough terrain to get to the destination.

During the traveling, there is no way to tell what's going on in the cooler until the team reaches the d...

‘Freeze-free’ vaccine carriers – Where are they?

Three years after the freeze-free concept was reported at the September 2014 meeting of the WHO PQS Committee, the current expectation of availability remains ‘sometime next year’ and it appears that no product has passed the pre-qualification (E004/VC02-VP.1) testing yet.

The current status of this product was presented at the last Technet Conference by WHO/PQS. During the resulting discussion, I noted five issues that seem to require attention:

The outside dimensions and weig...

Transportation of vaccines from the cold-chain point of a planning unit to the outreach session sites – A model.

Dear viewers - Please find the following and the attached illustration for a critical review and needful.


CCH Mrs Anitha Beth and Asst CCH Mr Mukesh could not believe when the author shared his observations that the “T” series vaccines were found in “Frozen” condition at the session site far off from the ILR point. Temperature record book never showed subzero recording on any day. CCH had to distribute vaccines to ~50 session sites on Thursdays and ~30 session site...

UNICEF SD Vaccine Carrier and Cold Box selection tool

Vaccine carrier and Cold box selection tool.

Dear Cold Chain colleagues,

UNICEF SD has developed a tool which makes the process of selecting Vaccine Carriers or Cold Boxes easier.

Please follow the below link to the UNICEFCold chain support package and click on the tab 7. Vaccine Carriers and Cold Boxes. Scroll down to find the tool.

Any comments you may have regarding this tool would be much appreciated.


Andrew McCourt


Launched today: Special Edition of Vaccine “Building Next Generation Immunization Supply Chains"

PATH is pleased to present “Building Next Generation Immunization Supply Chains” a special edition of Vaccine journal which brings together evidence from global experts in 31 articles representing decades of work by country governments, implementing partners, and donors to improve immunization supply chains (iSC). The articles address the impact of iSC on vaccine coverage, current challenges, and successful pilots, prom...

Evaluating the Sure Chill Long-Term Passive Device in Senegal: Field Evaluation Report / [Evaluation de l’appareil passif à long terme Sure Chill au Sénégal: Rapport d'évaluation sur le terrain]

Hi All,

PATH Senegal Office had proceeded last year a field evaluation of Sure Chill’s long-term passive device for the use of cold storage of vaccines in Senegal and provides important feedback in terms of thermal performance, end-user inputs, and perceptions at the Ministry of Health of the potential impact of the device on vaccine storage and availability in Senegal.

Please find the study report by clicking on the following link:

Passive storage devices--new technology requires new SOPs

Does anyone have experience with vaccine passive storage devices in the field? We are piloting the PQS pre-qualified Arktek device in three rural health centers. By design, the device maintains a temperature range between 0°C and 10°C which will not freeze the vaccines so should not pose any risk to the potency of the vaccines. We are seeing some unease from health workers and EPI managers, though, who are concerned that vaccines would be out of the 2°C – 8°C range and at risk of freezing, ev...

Equipment choices to cool vaccines during transport by immunization ‘outreach’

Within the next ten years access will be extended to immunization for the families of approximately 20% of the world’s new-borns who have never seen the health service. Some will be located in remote areas that suffer from lack of infrastructure, hostile topography and extreme temperatures. Reaching these ‘last mile’ communities with routine immunization and other health services will be hard – perhaps as difficult as reaching the 80% coverage that has already been achieved by most c...

PATH’s cold chain equipment Total Cost of Ownership tool now available

PATH’s Total Cost of Ownership (TCO) tool for cold chain equipment is now available for download and use.

The TCO tool is designed to help countries compare and understand the costs associated with the purchase, installation, and ongoing operation of cold chain equipment. The tool currently covers 82 cold chain equipment devices including all 72 PQS (Performance, Quality and Safety) prequalified devices from the E001 (cold rooms and freezer rooms), E003 (refrigerators and freezers), a...

Car battery operated cold boxes

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 ...

A Supply Chain for outreach immunization?

Immunization outreach services depend on a protective, affordable and efficient supply chain to benefit rather than obstruct outreach operations. Four potential cold-chain solutions are on offer but each has barriers to be negotiated or removed. The options are:

Frozen water packs BUT we should switch to freeze-free vaccine carriers to avoid the risk of freezing: Vaccines certified for use in a ‘Controlled Temperature Chain’: PCM-filled packs used in all existing carriers and boxes p...

GEV / nouveaux documents en français

Veuillez trouver ci-dessous les liens concernant trois documents, liés à la gestion efficace des vaccins, qui sont dès à présent disponibles en français:



Survey on the acceptability of vaccine carriers

PATH is conducting this survey to learn how vaccine carriers are currently used in the vaccine supply chain and whether they are meeting the needs of the health system. We are interested in global trends as well as examples from individual countries. We welcome any comments or feedback. The survey will take about 15 minutes to complete.

We hope that the results of this survey will help advance future vaccine carrier designs and improve the ability of health workers to meet the n...

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