Virus Collection and Transport Kit

VTM Medium

VTM medium consists of modified Hank’s-HEPES buffer solution supplemented with bovine serum albumin, gelatin, a ntibiotic and etc. A phenol red pH indicator is utilized to ensure medium integrity. The medium is osmotically balanced and buffered so that canmaintain the viability of virus specimens, while preventing bacteria proliferation during transportation to laboratory.

VTM-N Medium

VTM-N medium is Guanidine-based medium, contains the protein deformers and nuclease inhibitors which lyses cells to release and preserve Nucleic acids (RNA & DNA), whilemakes the virus inactive for safe handling. VTM-N ensures optimal preservation of RNA and DNA at room temperature for up to 48h, but not suitable for culture or rapid antigen testing.

PBS and Normal Saline Solution

Phosphate buffered saline (PBS), including molecular grade PBS when available, and other similar formulations including Delbecco’s PBS, can be used to collect and transport samples for molecular RT-PCR SARS-CoV-2 assays. If PBS is not available, normal saline may be used. FDA believes that a sterile glass or plastic vial containing between 1mL and 3mL of PBS or normal saline is appropriate. Specimens can be stored up to 72 hours at 4°C.

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