SARS-CoV-2 seropositivity and seroconversion in patients undergoing active cancer-directed therapy
Anh N. Le,
Madeline L. Good,
Seth D. Jeffries,
Yolanda R. Kry,
Emily M. Kugler,
Stacy L. Pundock,
Lisa A. Varughese,
Shefali Setia Verma,
Madison E. Weirick,
Christopher M. McAllister,
Robert H Vonderheide,
Lynn M Schuchter,
Scott E. Hensley,
E. Paul Wileyto,
Alexander C Huang,
Posted 16 Jan 2021
medRxiv DOI: 10.1101/2021.01.15.21249810
Posted 16 Jan 2021
Multiple studies have demonstrated the negative impact of cancer care delays during the COVID-19 pandemic, and transmission mitigation techniques are imperative for continued cancer care delivery. To gauge the effectiveness of these measures at the University of Pennsylvania, we conducted a longitudinal study of SARS-CoV-2 antibody seropositivity and seroconversion in patients presenting to infusion centers for cancer-directed therapy between 5/21/2020 and 10/8/2020. Participants completed questionnaires and had up to five serial blood collections. Of 124 enrolled patients, only two (1.6%) had detectable SARS-CoV-2 antibodies on initial blood draw, and no initially seronegative patients developed newly detectable antibodies on subsequent blood draw(s), corresponding to a seroconversion rate of 0% (95%CI 0.0-4.1%) over 14.8 person-years of follow up, with a median of 13 healthcare visits per patient. These results suggest that cancer patients receiving in-person care at a facility with aggressive mitigation efforts have an extremely low likelihood of COVID-19 infection.
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