How should a tick vaccine be stored? - briefly
Store the vaccine refrigerated between 2 °C and 8 °C, shielded from light, and never freeze; once the vial is opened, use it within the time frame specified by the manufacturer and discard any remaining product.
How should a tick vaccine be stored? - in detail
The vaccine must be kept at a consistent refrigerated temperature, typically between 2 °C and 8 °C (36 °F–46 °F). Temperatures outside this range can degrade antigenic proteins and reduce efficacy.
Store the vials in a dedicated refrigerator that is not used for food items. The unit should have a calibrated thermometer, and temperature logs must be reviewed at least weekly. If the refrigerator experiences a power interruption lasting more than 30 minutes, the product should be inspected for temperature excursions and, if necessary, discarded according to the manufacturer’s guidance.
Protection from light is essential because many formulations contain light‑sensitive components. Place vials in opaque secondary containers or keep them on the interior shelves, away from direct illumination.
Do not freeze the product. Freezing can cause irreversible damage to the adjuvant and alter the vaccine’s physical properties. If a vial is inadvertently frozen, it must be removed from use.
After removal from refrigeration, the vaccine may be held at room temperature for a limited period, usually not exceeding 30 minutes, before administration. During this time, keep the vial upright and avoid exposure to extreme temperatures.
When a vial is opened, use a sterile syringe and needle for each dose. Discard any remaining liquid after the recommended usage time, as contamination risk increases rapidly once the seal is broken.
Maintain a clear inventory system that records:
- Lot number
- Expiration date
- Date of receipt
- Date of first thaw or removal from cold storage
Replace any vaccine that approaches its expiration date or shows signs of discoloration, precipitate formation, or particulate matter.
Adhere to the manufacturer’s specific storage instructions, which may include additional requirements such as humidity control or protective packaging. Compliance with these guidelines ensures the vaccine retains its intended protective properties.