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An indolent case of severe acute respiratory syndrome.

Severe acute respiratory syndrome (SARS) is a highly contagious and typically rapidly progressive form of atypical pneumonia, which spread from Asia to many parts of the world in early 2003. Clinical diagnosis of SARS requires the presence of unremitting fever and progressive pneumonia despite antibiotic therapy, particularly in the presence of lymphopenia and raised transaminase levels. We report the case of a woman who had undergone a successful allogeneic bone marrow transplant for acute myeloid leukemia. She presented initially with fever and a normal chest radiograph. Her indolent clinical course of SARS was punctuated by resolution of fever, but there was progressive radiologic deterioration and increasing serum antibody titer against SARS coronavirus. Treatment with oral prednisolone and ribavirin normalized her lymphopenia, altered transaminases, chest radiograph and high-resolution computed tomography appearances rapidly. Our experience should alert other clinicians in recognizing this atypical indolent presentation of SARS, to protect health care workers and the community at large and to ensure that these patients are properly treated.