Analytical recommendations for SARS-CoV-2 identification by RT-PCR in pediatric patients



Israel Parra-Ortega, Departamento de Laboratorio Clínico, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
Armando Vilchis-Ordoñez, Laboratorio Clínico, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
Briceida López-Martínez, Subdirección de Servicios Auxiliares y Diagnóstico, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
Tania Ángeles-Floriano, Laboratorio Clínico; Laboratorio de Investigación en Inmunología y Proteómica; Hospital Infantil de México Federico Gómez, Mexico City, Mexico


Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome 2 coronavirus (SARS-CoV-2) and is currently listed as a global public health emergency. Timely identification and protocol implementations for molecular detection of this virus are vital for medical decision-making. Identification of SARS-CoV-2 infection cases is based on detection of the virus RNA by molecular tests, particularly real-time reverse transcription-polymerase chain reaction (RT-PCR). Technical and operational details specific to each center must be considered to perform the molecular diagnosis of SARS-CoV-2 in pediatric patients. The term “qualified laboratories” involves laboratories in which all users, analysts, and anyone reporting results are trained to develop and interpret results through a procedure implemented previously by an instructor. Such knowledge is essential in detecting and identifying errors during each of its phases: pre-analytical, analytical, and post-analytical, which allow the establishment of continuous improvement policies to ensure the quality of the results, but above all, the physical integrity of health workers.



Keywords: COVID-19. SARS-CoV-2. RT-PCR.