Saliva Pooling Strategy for the Large-Scale Detection of SARS-CoV-2, Through Working-Groups Testing of Asymptomatic Subjects for Potential Applications in Different Workplaces

Autor: A.B. Benitez-Trinidad, K.J.G. Díaz-Resendiz, Ansonny Jhovanny Ojeda-Durán, G.A. Toledo-Ibarra, Ulises Mercado-Salgado, G.H. Ventura-Ramón, Manuel Iván Girón-Pérez, Daniel Alberto Girón Pérez, Rocío Alejandra Ruiz-Manzano, C.E. Covantes-Rosales
Rok vydání: 2021
Předmět:
Zdroj: Journal of Occupational and Environmental Medicine
ISSN: 1536-5948
1076-2752
Popis: OBJECTIVE: To perform an improved large-scale SARS-CoV-2 detection on pooled tests of asymptomatic workers. METHODS: qRT-PCR validation of the SARS-CoV-2 detection in salivae samples and saliva pools and working-group saliva pooling and testing for SARS-CoV-2. RESULTS: We found a high Cycle threshold (Ct) correlation (r = 0.9099) between swabs and saliva samples. Then, through the pooling strategy, we detected that 18/360 (5%) of individual saliva samples were SARS-CoV-2 positive. Saliva-pooling efficiency (360 of test sample/30 individual PCR) was higher (5.45) than the reported for swabbing group-testing and we spared 82% of the PCR reagents as well as sampling and personal protection equipment. CONCLUSION: Through this simplified and less expensive procedure, we detected in a short time asymptomatic-infected SARS-CoV-2-carriers that were isolated from their co-workers, thus, this methodology can be implemented in different workplaces to ensure consumers that employees are not infectious.
Databáze: OpenAIRE