| Summary: | Abstact: Objective: Several factors raise concern for increased risk of COVID-19 in cancer patients. While there is strong support for testing symptomatic patients. The benefit of routine testing of asymptomatic patients remains contentious. We aim to evaluate the prevalence of asymptomatic COVID-19 infection in cancer patients. Methods: Between June 1 and September 3, 2020, we obtained nasopharyngeal swab from asymptomatic cancer patients who were visiting a single tertiary-care cancer center, and tested the specimen for the presence or absence of SARS-CoV-2 RNA. We performed a descriptive statistic of data Results: We tested a total of 80 patients, of which 3 (3.75%) were found positive for COVID-19. A significant proportion of the tested patients were on active immunosuppressive or immunomodulatory treatment, cytotoxic chemotherapy (n = 34), and immunotherapy (n = 16). However, all three COVID-19 positive patients were only actively on hormonal therapy. All three patients observed a minimum of 2 weeks home quarantine. None of the patients developed symptoms upon follow up and no changes were required to their treatment plan. Conclusions: Despite published evidence that cancer patients may be at increased risk of severe COVID -19 infection, our data suggest that some infected cancer patients are asymptomatic. The overall prevalence of asymptomatic COVID-19 infection in this population of cancer patients was similar to that in the general population. Therefore, since asymptomatic infections are not uncommon in patients with cancer, we recommend universal COVID-19 testing to help guide treatment decisions and prevent the spread of the disease.
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