TechNet-21 - Forum

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  1. Vijay Agarwal
  2. Cold chain equipment
  3. Tuesday, 16 November 2021

How many vials vcan be stored in a freeze free vaccine carrier? 

Pat Lennon Accepted Answer

Vijay - You will need more information to answer that question.

1) Vaccine vials come in many different sizes. You would need to know what size vials are intended to be placed in the vaccine carrier and if there will be a mix of different vaccines, such as for a typical outreach session.

2) The vaccine carriers have different storage capacities. You can find a list of PQS prequalified freeze-preventive carriers here: https://apps.who.int/immunization_standards/vaccine_quality/pqs_catalogue/categorypage.aspx?id_cat=18  There are currently five freeze-preventive carriers prequalified by WHO and their vaccine storage capacity ranges from 1.04 to 1.7 liters.

Once the vial sizes and carrier capacity are known you could estimate the number of vials that the carrier could hold.

In my experience the number of vials used for routine immunization outreach sessions is usually low so even the smallest vaccine carrier should work. If the carrier is being used in place of a cold box to transport vaccines between facilities or for a campaign serving many people then more capacity and/or multiple carriers may be needed.



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