This product is specially designed for the collection and ambient‑temperature transportation of samples containing coronavirus, influenza virus, hand‑foot‑and‑mouth virus, measles‑rubella virus and other viruses, facilitating sample transport and off‑site testing.
This product features the following advantages:
1. Contains virus‑inactivating reagents with a rapid reaction rate. Viruses (including all types of DNA and RNA viruses) can be inactivated within several minutes to lose infectivity.
2. Contains highly effective nuclease‑inactivating reagents and special nucleic‑acid protectants. It rapidly inactivates various nucleases including DNase and RNase to eliminate the risk of nucleic‑acid degradation, ensuring no significant nucleic‑acid degradation within 4 days at ambient temperature. Samples exceeding the 4‑day storage period shall be stored and transported at ‑20 °C.
3. Suitable for collection, preservation and transportation of samples collected by various swabs, including oral swabs, throat swabs, nasal swabs, vaginal swabs, etc.
4. Preserved samples can be directly used for subsequent nucleic acid purification and testing.
5. Viruses in samples preserved with this product have been inactivated; the samples cannot be used for virus culture.
6. This product is for research‑only use.
Instructions for Use:
Note: Although this product contains virus‑inactivating agents, the outer surface of the centrifuge tube may still be contaminated with viruses during sampling. Operators must wear appropriate personal protective equipment as required for handling infectious samples, and all operations shall be performed in laboratories complying with national regulations. This product has bacteriostatic properties; however, contamination cannot be completely ruled out during aliquoting into sampling tubes. Appropriate sterilization is recommended before and after aliquoting.
1. Fill‑volume specification: 3 mL (1‑swab‑1‑tube configuration); 6 mL (5‑swab‑1‑tube and 10‑swab‑1‑tube configurations).
2. Before sampling, label the sampling tube pre‑filled with virus preservation solution with relevant sample information.
3. Collect samples from corresponding sites using sampling swabs according to sampling requirements. Specific sampling procedures are described below:
a) Nasal swab: Gently insert the swab tip into the nasopalatine region of the nasal passage, hold for a moment, rotate slowly and withdraw.
b) Throat swab: Swab both palatine tonsils and the posterior pharyngeal wall with the swab, then withdraw.
c) Urethral sampling: For males, insert the swab approximately 2 cm into the urethra, rotate, hold for several seconds and withdraw. For females, remove mucus at the cervical orifice, insert the swab 1‑2 cm into the cervical canal and withdraw.
d) Other swab sampling methods: Not detailed in this manual.
4. Immediately place the swab into the sampling tube containing virus preservation solution, and rotate the swab inside the tube for 15 seconds.
5. Break the swab at the break‑point, discard the handle segment, and tighten the tube cap.
6. Freshly collected specimens shall be transported to the laboratory within 96 hours (4 days) at 4 °C‑25 °C. Specimens that cannot be delivered to the laboratory within 96 hours shall be stored at ‑70 °C or below; DNA‑containing samples may alternatively be stored at ‑20 °C.
