The following are the precautions for the virus transport system (VTM-RT) during transportation:

Packaging and marking

• Well-sealed: Ensure that after the sampling swab is placed in the transport tube, the tube cap is tightly screwed to prevent sample leakage during transportation. If any cracks, looseness, or leakage of the transport tube is found, it should be replaced immediately.
• Properly marked: Clearly mark key information such as the source of the sample, collection time, and patient information on the transport tube to ensure accurate information for subsequent identification and traceability.

Transportation conditions

• Temperature control: Generally, it is recommended to transport under refrigeration at 2-8°C, and ice packs, cold chain transport boxes, etc. can be used to maintain a stable temperature. For samples that require long-term transportation or have special requirements, a lower temperature such as -20°C or -80°C may be required, and appropriate freezing equipment and packaging materials must be ensured.
• Avoid vibration and collision: Secure the transport system properly in the transport container to prevent sample damage or transport tube rupture due to vibration and collision during transportation.

Time limit

• Transport as soon as possible: The sample should be arranged for transportation as soon as possible after collection to minimize the risk of reduced virus activity or nucleic acid degradation. Generally, it is advisable to deliver it to the testing laboratory within 24-48 hours.

Transportation safety and compliance

• Personal protection: The transportation personnel need to wear appropriate personal protective equipment, such as gloves, masks, and protective clothing, to avoid direct contact with the sample and prevent infection.
• Compliance with regulations: Strictly abide by relevant national and international regulations and guidelines for the transportation of infectious substances, such as the “Road Transport Regulations for Dangerous Goods”, and handle necessary transportation permits and documents.

Emergency handling

• Sample leakage: In case of sample leakage, emergency measures should be taken immediately, and the leakage area should be disinfected with an appropriate disinfectant such as chlorine-containing disinfectant to avoid personnel from contacting the leaked sample.
• Transport delay: If the transport is delayed due to force majeure, communicate with the receiving laboratory in time to negotiate appropriate measures, such as adjusting the preservation conditions or arranging transport as soon as possible.