Tags

Type your tag names separated by a space and hit enter

Effects of Different Temperature and Time Durations of Virus Inactivation on Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses.
Curr Med Sci. 2020 Aug; 40(4):614-617.CM

Abstract

The novel Coronavirus SARS-CoV-2 caused an outbreak of pneumonia in Wuhan, Hubei province of China in January 2020. This study aims to investigate the effects of different temperature and time durations of virus inactivation on the results of PCR testing for SARS-CoV-2. Twelve patients at the Renmin Hospital of Wuhan University suspected of being infected with SARS-CoV-2 were selected on February 13, 2020 and throat swabs were taken. The swabs were stored at room temperature (20-25°C), then divided into aliquots and subjected to different temperature for different periods in order to inactivate the viruses (56°C for 30, 45, 60 min; 65, 70, 80°C for 10, 15, 20 min). Control aliquots were stored at room temperature for 60 min. Then all aliquots were tested in a real-time fluorescence PCR using primers against SARS-CoV-2. Regardless of inactivation temperature and time, 7 of 12 cases (58.3%) tested were positive for SARS-CoV-2 by PCR, and cycle threshold values were similar. These results suggest that virus inactivation parameters exert minimal influence on PCR test results. Inactivation at 65°C for 10 min may be sufficient to ensure safe, reliable testing.

Authors+Show Affiliations

Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China.Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, China. tytsing@163.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32767258

Citation

Wu, Ze-Gang, et al. "Effects of Different Temperature and Time Durations of Virus Inactivation On Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses." Current Medical Science, vol. 40, no. 4, 2020, pp. 614-617.
Wu ZG, Zheng HY, Gu J, et al. Effects of Different Temperature and Time Durations of Virus Inactivation on Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses. Curr Med Sci. 2020;40(4):614-617.
Wu, Z. G., Zheng, H. Y., Gu, J., Li, F., Lv, R. L., Deng, Y. Y., Xu, W. Z., & Tong, Y. Q. (2020). Effects of Different Temperature and Time Durations of Virus Inactivation on Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses. Current Medical Science, 40(4), 614-617. https://doi.org/10.1007/s11596-020-2224-y
Wu ZG, et al. Effects of Different Temperature and Time Durations of Virus Inactivation On Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses. Curr Med Sci. 2020;40(4):614-617. PubMed PMID: 32767258.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of Different Temperature and Time Durations of Virus Inactivation on Results of Real-time Fluorescence PCR Testing of COVID-19 Viruses. AU - Wu,Ze-Gang, AU - Zheng,Hong-Yun, AU - Gu,Jian, AU - Li,Feng, AU - Lv,Rui-Long, AU - Deng,Ya-Yun, AU - Xu,Wan-Zhou, AU - Tong,Yong-Qmg, Y1 - 2020/08/29/ PY - 2020/04/22/received PY - 2020/05/26/accepted PY - 2020/8/9/pubmed PY - 2020/9/5/medline PY - 2020/8/9/entrez KW - COVID-19 KW - SARS-CoV-2 KW - real-time fluorescence PCR KW - throat swabs SP - 614 EP - 617 JF - Current medical science JO - Curr Med Sci VL - 40 IS - 4 N2 - The novel Coronavirus SARS-CoV-2 caused an outbreak of pneumonia in Wuhan, Hubei province of China in January 2020. This study aims to investigate the effects of different temperature and time durations of virus inactivation on the results of PCR testing for SARS-CoV-2. Twelve patients at the Renmin Hospital of Wuhan University suspected of being infected with SARS-CoV-2 were selected on February 13, 2020 and throat swabs were taken. The swabs were stored at room temperature (20-25°C), then divided into aliquots and subjected to different temperature for different periods in order to inactivate the viruses (56°C for 30, 45, 60 min; 65, 70, 80°C for 10, 15, 20 min). Control aliquots were stored at room temperature for 60 min. Then all aliquots were tested in a real-time fluorescence PCR using primers against SARS-CoV-2. Regardless of inactivation temperature and time, 7 of 12 cases (58.3%) tested were positive for SARS-CoV-2 by PCR, and cycle threshold values were similar. These results suggest that virus inactivation parameters exert minimal influence on PCR test results. Inactivation at 65°C for 10 min may be sufficient to ensure safe, reliable testing. SN - 2523-899X UR - https://www.unboundmedicine.com/medline/citation/32767258/Effects_of_Different_Temperature_and_Time_Durations_of_Virus_Inactivation_on_Results_of_Real_time_Fluorescence_PCR_Testing_of_COVID_19_Viruses_ L2 - https://doi.org/10.1007/s11596-020-2224-y DB - PRIME DP - Unbound Medicine ER -