Introduction: Haemato-oncologic patients are more susceptible to severe infections with SARS-CoV-2. We aimed to assess the clinical outcomes of SARS-CoV-2 infection among patients with Mycosis Fungoides and Sezary Syndrome (MF/SS).
Methods: The data was retrieved from anonymized electronic medical records of Maccabi Healthcare Services (MHS), the second-largest healthcare organization in Israel. Patients diagnosed with MF/SS were included in the study. COVID-19 PCR, test results together with socio-demographic and clinical data were extracted and analyzed to evaluate the association of COVID-19 with clinical outcomes.
Results: In the period of 2020-2022, 1472 MF/SS patients were included in the study. Among them, 768 (52%) had SARS-CoV-2 infection. The hospitalization rate was 2.9% and infection by the Delta variant was associated with the highest hospitalization rate (7.7%). The hospitalization rate was lower among fully vaccinated patients (p=0.032), but higher for patients older than 65 (p<0.001) and patients with SS (vs. MF) (p<0.001) or COPD (p=0.024) diagnosis. There was a tendency for decreased hospitalization among patients treated with nirmatrelvir + ritonavir within five days of infection, with a 79% risk reduction, although it was not statistically significant (p=0.164).
Conclusion: Patients with MF/SS do not necessarily have worse COVID-19 outcomes compared to the general population.