Rickettsia felis identified in two fatal cases of acute meningoencephalitis

Arthur H.P. Mawuntu, Edison Johar, Riane Anggraeni, Feliana Feliana, Janno B.B. Bernadus, Dodi Safari, Frilasita A. Yudhaputri, Rama Dhenni, Yora P. Dewi, Cecilia Kato, Ann M. Powers, Ronald Rosenberg, Amin Soebandrio, Khin S.A. Myint

Research output: Contribution to journalArticle

Abstract

Background Rickettsia felis has recently emerged worldwide as a cause of human illness. Typically causing mild, undifferentiated fever, it has been implicated in several cases of non-fatal neurological disease in Mexico and Sweden. Its distribution and pathogenicity in Southeast Asia is poorly understood. Methodology/Principal findings We retroactively tested cerebrospinal fluid (CSF) or sera from 64 adult patients admitted to hospital in North Sulawesi, Indonesia with acute neurological disease. Rickettsia felis DNA was identified in the CSF of two fatal cases of meningoencephalitis using multi-locus sequence typing semi-nested PCR followed by Sanger sequencing. DNA from both cases had 100% sequence homologies to the R. felis reference strain URRWXCal2 for the 17-kDa and ompB genes, and 99.91% to gltA. Conclusion/Significance The identification of R. felis in the CSF of two fatal cases of meningoencephalitis in Indonesia suggests the distribution and pathogenicity of this emerging vector-borne bacteria might be greater than generally recognized. Typically Rickettsia are susceptible to the tetracy-clines and greater knowledge of R. felis endemicity in Indonesia should lead to better management of some acute neurological cases.

Original languageEnglish
Article numbere0007893
JournalPLoS Neglected Tropical Diseases
Volume14
Issue number2
DOIs
Publication statusPublished - Feb 2020

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    Mawuntu, A. H. P., Johar, E., Anggraeni, R., Feliana, F., Bernadus, J. B. B., Safari, D., Yudhaputri, F. A., Dhenni, R., Dewi, Y. P., Kato, C., Powers, A. M., Rosenberg, R., Soebandrio, A., & Myint, K. S. A. (2020). Rickettsia felis identified in two fatal cases of acute meningoencephalitis. PLoS Neglected Tropical Diseases, 14(2), [e0007893]. https://doi.org/10.1371/journal.pntd.0007893