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Volume 10, Number 5—May 2004

Research

Acute Tick-borne Rickettsiosis Caused by Rickettsia heilongjiangensis in the Russian Far East

Oleg Y. Mediannikov*†‡Comments to Author , Yuri Sidelnikov†, Leonid Ivanov§, Eugenia Mokretsova†, Pierre-Edouard Fournier‡, Irina Tarasevich*, and Didier Raoult‡
Author affiliations: *Gamaleya Research Institute of Epidemiology and Microbiology, Moscow, Russia; †Far Eastern State Medical University, Khabarovsk, Russia; ‡Université de la Méditerranée, Marseille, France; §Khabarovsk Plague Control Station of Ministry of Health of Russian Federation, Khabarovsk, Russia

Main Article

Table 3

Serologic data of 11 patients with Rickettsia infectiona

Patient no. Disease onset date Antimicrobial treatmentc PCR
gltA gene ompA and ompB genes Sera Collection date R. heilongjiangensis R. hulinensis R. sibirica R. conorii
1 6/18 6/23 + NI 1 6/24 0 0 0 0
2 6/28 1/1024 1/512 1/512 1/1,024
2 6/20 6/23 + + 1 6/24 0 0 0 0
2 7/9 0 0 0 0
3 6/21 6/24 + NI 1 6/5 0 0 0 0
2 7/12 0 0 0 0
4 6/22 6/26 + NI 1 6/26 1/64 1/64 1/64 1/64
2 7/1 1/2,048 1/512 1/512 1/2048
5 6/22 6/28 + NI 1 6/28 0 0 0 0
2 7/16 1/128 1/128 1/128 1/128
6 6/29 7/2 + + 1 7/3 0 0 0 0
2 7/8 1/128 1/64 1/64 1/128
7 6/30 7/4 + NI 1 7/5 0 0 0 0
2 7/16 1/256 1/128 1/256 1/256
8 7/1 7/8 + NI 1 7/8 0 0 0 0
2 7/26 0 0 0 0
9 7/6 7/12 + NI 1 7/15 1/1,024 1/1,024 1/1,024 1/1,024
2 7/31 1/1,024 1/1,024 1/1,024 1/1,024
10 7/23 7/28 + + 1 7/29 0 0 0 0
2 8/13 1/1,024 1/1,024 1/256 1/256
11 7/25 8/1 + NI 1 8/2 1/256 1/256 1/128 1/128
2 8/15 1/256 1/256 1/128 1/128

aPCR, polymerase chain reaction; Ig, immunoglobulin; NI, not investigated.
bIgG tests used.
cDate of beginning of antimicrobial drug therapy.

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