[PCR for COVID-19 positive, then negative and again positive Reinfection at 55 days?].

Martín Enguix, DavidAguirre Rodríguez, Juan CarlosSánchez Cambronero, MaríaHidalgo Rodríguez, Abraham2023-02-092023-02-092020-12-23http://hdl.handle.net/10668/17017esAdultCOVID-19COVID-19 Nucleic Acid TestingFalse Negative ReactionsFemaleHumansPolymerase Chain ReactionReinfection[PCR for COVID-19 positive, then negative and again positive Reinfection at 55 days?].PCR para COVID-19 positiva, luego negativa y otra vez positiva ¿Reinfección a los 55 días?research article33478840open access10.1016/j.semerg.2020.12.0011578-8865PMC7755571https://doi.org/10.1016/j.semerg.2020.12.001https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7755571/pdf