1. Prospective Observational COVID-19 Screening and Monitoring of Asymptomatic Cancer Center Health-Care Workers with a Rapid Serological Test
- Author
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Antonio Tufaro, Angela Maria Vittoria Larocca, Vincenzo D’addabbo, Vito Michele Garrisi, Vito Cafagna, Stefania Tommasi, Angelo Paradiso, Simona De Summa, Nicola Silvestris, Donata Raffaele, and Giuseppe De Palma
- Subjects
medicine.medical_specialty ,Medicine (General) ,Coronavirus disease 2019 (COVID-19) ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Clinical Biochemistry ,Asymptomatic ,Virus ,Serology ,03 medical and health sciences ,0302 clinical medicine ,R5-920 ,Internal medicine ,Health care ,Medicine ,030212 general & internal medicine ,business.industry ,SARS-CoV-2 ,Brief Report ,Cancer ,COVID-19 ,cancer center ,medicine.disease ,serological test ,030220 oncology & carcinogenesis ,Observational study ,health-care workers ,medicine.symptom ,business - Abstract
Health-care workers (HCW) are at high risk for SARS-CoV-2 infection and, if asymptomatic, for transmitting the virus to fragile cancer patients. We monitored all asymptomatic HCWs of a cancer institute (94% of all employees agreed to enter the study) with the rapid serological test, VivaDiagTM, identifying SARS-CoV-2 associated-IgM/IgG. The tests were performed at time 0 (n = 606) and after 14 days (n = 393). Overall, the VivaDiagTM results of nine HCWs (1.5%) were positive, with one confirmed to be SARS-CoV-2-positive after oropharyngeal swab testing by RT-PCR. At time 0, all nine cases showed IgM expression while IgG was detected in only one. After 14 days, IgM persisted in all the cases, while IgG became evident in four. A chemiluminescence immunoassay (CLIA) confirmed IgM positivity in 5/13 VivaDiagTM positive cases and IgG positivity in 4/5 VivaDiagTM positive cases. Our study suggests that the VivaDiagTM test can be of help in identifying SARS-CoV-2 infected people in cohorts of subjects with a high prevalence.
- Published
- 2021