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Volume 9, Number 7—July 2003

Research

Amoeba-Resisting Bacteria and Ventilator-Associated Pneumonia

Bernard La Scola*, Ioanna Boyadjiev*†, Gilbert Greub*, Atieh Khamis*, Claude Martin†, and Didier Raoult*†Comments to Author 
Author affiliations: *Unité des Rickettsies, Marseille, France; †Hôpital Nord, Marseille, France

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Table 4

Definition of cutoff titers for positive serologic tests and 100% specificity according to antigen tested by using the 224 control serum samplesa

Antigen IgG IgM
Legionella anisa
>1:50
>1:25
Bosea massiliensis
>1:50
>1:25
Rasbo bacterium
>1:100
>1:25
Bradyrhizobium liaoningense
>1:50
>1:25
L. quinlivanii
>1:100
>1:25
L. pneumophila
>1:50
>1:25
L. rubrilucens
>1:200
>1:25
L. worsleiensis
>1:200
>1:25
B. japonicum
>1:100
>1:25
Afipia broomeae
>1:200
>1:25
Bosea eneae
>1:800
>1:25
B. vestrisii
>1:100
>1:25
B. thiooxydans
>1:50
>1:25
Mesorhizobium amorphae
>1:100
>1:25
Azorhizobium caulinodans
>1:100
>1:25
Afipia felis
>1:100
>1:25
A. felis genospecies A
>1:100
>1:25
A. clevelandensis
>1:100
>1:25
A. birgiae
>1:50
>1:25
A. massiliae >1:50 >1:25

aIg, immunoglobulin.

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