Journal: Frontiers in Veterinary Science
Article Title: Inactivation of highly transmissible livestock and avian viruses including influenza A and Newcastle disease virus for molecular diagnostics
doi: 10.3389/fvets.2024.1304022
Figure Lengend Snippet: Virus inactivation and nucleic acid detection are stable over time in PSMTM. Virus recovery and nucleic acid detection over 21 days for viruses deposited in a plastic screw-cap tube at ambient temperature. Inactivation was assessed using the manufacturer’s recommended conditions. (A) Virus recovery was assessed by TCID 50 for PBS no-inactivation control-treated LPAI H7N3 (left) and PrimeStore® molecular transport media (PSMTM)-treated LPAI H7N3 (right). (B) Virus nucleic acid cycle threshold (CT) detection for PBS no-inactivation control and PSMTM-treated LPAI H7N3. (C) Virus recovery was assessed by TCID 50 for PBS no-inactivation control-treated vaccinia virus (left) and PSMTM-treated vaccinia virus (right). (D) Virus nucleic acid cycle threshold (CT) detection for PBS no-inactivation control and PSMTM-treated vaccinia virus. (A,C) TCID 50 titer was determined in the appropriate cell line as identified in . Each timepoint was compared to timepoint 0 for each respective treatment. (B,D) Nucleic acid was detected according to the reference in and the description in Methods. PSMTM-treated viruses were compared to the corresponding no-PSMTM control. Significance was determined using Student’s t -test. * p < 0.05; ** p < 0.01; ns, not significant. Error bars represent the standard error of the mean (SEM) of triplicate experiments. Low pathogenic avian influenza virus (LPAI).
Article Snippet: PrimeStore® molecular transport media (PSMTM) tubes contain proprietary reagents that inactivate both viruses and bacteria by disrupting lipid membranes and inhibiting replication machinery while stabilizing nucleic acids (PrimeStore ® , Longhorn Vaccines and Diagnostics) ( , ).
Techniques: Virus, Control