Saliva is typically stored in swabs or cryovials, depending on the intended storage duration.
Saliva Storage Methods
Saliva samples can be stored in different ways, depending on the research or testing needs. Here's a breakdown:
Storage in Swabs
- Short-term Storage: Saliva can be collected on swabs and stored for up to 6 months.
- Temperature: These swabs need to be kept at either -20°C or -80°C to preserve the saliva.
Storage in Cryovials
- Long-term Storage: For storage longer than six months, it is recommended that saliva be removed from swabs.
- Transfer: The saliva is expressed (extracted) from the swab and transferred to cryovials.
- Purpose: This process helps to maintain the integrity of the saliva sample for longer periods.
| Storage Method | Duration | Temperature | Container | Purpose |
|---|---|---|---|---|
| On Swabs | Up to 6 months | -20°C or -80°C | Swabs | Short term storage |
| In Cryovials | Over 6 months | -20°C or -80°C | Cryovials | Long term storage |
Note: Both of these methods involve keeping the sample at very low temperatures to ensure the integrity of the saliva sample over time.
