We describe four cases of COVID-19 infection during the Omicron wave, in patients treated with anti-CD20 monoclonal antibodies. All cases follow a similar biphasic clinical course consisting of respiratory deterioration, which occurred a few weeks after convalescence from initial mild to asymptomatic infection. Possible explanations are discussed.
Learning points:
Four cases of COVID-19 infection in anti-CD20 treated patients are described.These cases display a unique biphasic course that was previously undescribed: respiratory deterioration weeks after convalescence.Awareness of such a course and rapid utilisation of bronchoalveolar lavage will lead to quicker diagnosis and more timely, appropriate treatment.