Volume 28, Number 1—January 2022
Research
Systematic Genomic and Clinical Analysis of Severe Acute Respiratory Syndrome Coronavirus 2 Reinfections and Recurrences Involving the Same Strain
Figure 1

Figure 1. Flow diagram of the analysis and selection criteria for severe acute respiratory syndrome coronavirus 2 re-positive cases, Madrid, Spain, March 2020–March 2021. Re-positive cases were those that had 2 sequential positive RT-PCR tests taken >45 days apart with >1 negative RT-PCRs between the positive tests. Ct, cycle threshold; SNP, single-nucleotide polymorphism; STR, short tandem repeat; VOC, variant of concern; VOI, variant of interest; WGS, whole-genome sequencing.
1These senior authors contributed equally to this article.
2Members of the Gregorio Marañón Microbiology-ID COVID 19 Study Group are listed at the end of this article.
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