Premaratna, R.Williams, H.S.A.Chandrasena, T.G.A.N.Rajapakse, R.P.V.J.Kularatne, S.A.M.de Silva, H.J.2014-10-292014-10-292009Transactions of the Royal Society of Tropical Medicine and Hygiene. 2009; 103(9): pp.961-30035-9203 (Print)1878-3503 (Electronic)http://repository.kln.ac.lk/handle/123456789/1904Indexed in MEDLINEWe report two patients who presented with a long-lasting febrile illness associated with pancytopenia. Both of them had evidence of hypercellular marrow with haemophagocytosis. They were confirmed as having rickettsial infections by serology and had a rapid haematological recovery with anti-rickettsial antibiotics. We highlight the importance of considering rickettsial infections in patients with such clinical presentations, especially in areas where these infections are endemic or re-emerging. Empirical use of anti-rickettsial antibiotics in such situations could be beneficial, when facilities to diagnose rickettsial diseases are not readily available.Unusual pancytopenia secondary to haemophagocytosis syndrome in rickettsiosesArticle