Haematological changes signal outcome in SARS patientsBMJ 2003; 326 doi: http://dx.doi.org/10.1136/bmj.326.7403.0-a (Published 19 June 2003) Cite this as: BMJ 2003;326:0-a
Abnormal haematological values are common in patients with SARS. In a retrospective analysis of the haematological changes in 153 patients with SARS, Wong and colleagues (p 1358) found that lymphopenia was present in 98%, neutrophilia in 82%, and thrombocytopenia in 87%. Also, low CD4 and CD8 cell counts and a high concentration of lactate dehydrogenase at presentations were associated with adverse outcome. Depletion of lymphocytes, which was found in various lymphoid organs at postmortem examination, may be a good marker of disease activity.