There has been reports on the reactivation of SARS-CoV-2, however, my systematic searches (at the time of writing) find very little published evidence and most reports are to be found in the mainstream media. For example, in the absence of China reporting the data, Reuters indicate having directly contacted hospital in china (see link).
https://www.reuters.com/article/us-health-coronavirus-china-patients-ins/recovered-almost-chinas-early-patients-unable-to-shed-coronavirus-idUSKCN2240H
Please post any published, pre-publications, research protocols or links to ongoing research here.
Some are the few I have found - please help identify more:
Article Risk of reactivation or reinfection of novel coronavirus (COVID-19)
Article Clinical characteristics of severe acute respiratory syndrom...
No reinfection, recurrence or reactivation clearly documented in a recovered COVID-19 patient if we judge by symptoms, lab and radiological evaluation and contagiousness, not by CT-PCR results
It is not yet established that patients who are declared recovered from COVID-19 on the basis of two NEGATIVE RT-PCR tests for SARS-CoV-19 had actually recovered due to laboratory error of testing kits or the the positivity indicates a carrier state, as none of these reports indicated any worsening of clinical condition of the patient based on symptoms, CT-scan or other parameters (1). We have seen many patients with COVID-19 who despite making a clinical recovery are often having positive reports based on the RT-PCR results up to 35 days after initial diagnosis (2). There has been talk of viral RNA belong to dead virus (viral litter, debris) as the explanation for positive RNA-based PCR tests, as this test does not establish the presence of live virus.
Important point is that there is a disconnect between positive tests and the clinical condition of the such COVID-19 patients. If you follow up such patients, none of the patients had adverse outcome.
1.Preprint Clinical characteristics of the recovered COVID-19 patients ... 2. https://www.researchgate.net/post/What_are_the_interpretations_and_implications_of_having_negative_followed_by_positive_RT-PCR_tests_in_COVID-19_patients
Check it out,
Clinical Characteristics of Severe Acute Respiratory Syndrome Coronavirus 2 Reactivation by Guangming Ye et al.