Volume 19, Number 2—February 2013
Dispatch
Human Granulocytic Anaplasmosis, Japan
Table 2
Detection of IgM and IgG in serum samples from 2 men with human granulocytic anaplasmosis, Kochi Prefecture, Japan*
Days after symptom onset | Antibody titers, IgM/IgG† |
|||
---|---|---|---|---|
R. japonica, cultured in L929 cells‡ | O. tsutsugamushi, cultured in L929 cells§ | Anaplasma phagocytophilum, propagated in |
||
HL60 cells | THP-1 cells | |||
Case-patient 1 | ||||
3 | <20/<20 | <20/<20 | <20/<20 | 80/<20 |
19 |
<20/<20 |
<20/<20 |
<20/<20 |
320/80 |
Case-patient 2 | ||||
4 | <20/<20 | <20/<20 | 20/<20 | 40/40 |
11 | <20/320 | <20/<20 | <20/<20 | 160/80 |
*All Western blot testing using recombinant P44-1 antigen detected IgM and IgG; the antigen reacted with all sera tested, as shown in Figure 2.
†Determined by using indirect immunofluorescence assay.
‡Rickettsia japonica strain YH.
§Orientia tsutsugamushi strains Gilliam, Karp, Kato, and Kawasaki.
1These authors contributed equally to this article.
2Current affiliation: Ehime Prefectural Central Hospital, Matsuyama, Ehime, Japan.
3Current affiliation: Kochi Medical School, Nankoku, Kochi, Japan.