Volume 18, Number 9—September 2012
Letter
Aeromonas spp. Bacteremia in Pregnant Women, Thailand–Myanmar Border, 2011
, Charlotte Willemse, Kawalee Phakaudom, Thet Wai Zin, Francois Nosten, and Rose McGreadyTable
Characteristics of Aeromonas spp. isolates from blood of 3 pregnant women, Thailand–Myanmar border, January–May 2011*
| Characteristic |
Patient no., organism
|
||
|---|---|---|---|
| 1, A. hydrophila | 2, A. veronii biovar sobria | 3, A. veronii biovar sobria | |
| Species identification results | |||
|
Growth in 1% NaCl |
+ | + | + |
|
Growth in 6% NaCl |
– | – | – |
|
Growth on TCBS agar (colonies) |
+/– (yellow) | +/– (yellow) | +/– (green) |
|
Glucose fermentation |
+ | + | + |
|
Oxidase |
+ | + | + |
|
O129 susceptibility (10 µg/150 µg) |
–/– | –/– | –/– |
|
Esculin hydrolysis |
+ | – | – |
|
Indole |
+ | + | + |
|
Voges-Proskauer |
+ | + | + |
|
Gas from glucose (TSI) |
+ | + | + |
|
Acid from arabinose |
– | – | – |
| Cephalothin susceptibility (30 µg) | – | + | – |
|
Antimicrobial drug susceptibilities (zone diameter, mm) |
|||
|
Ampicillin (10 µg) |
NA (6) | NA (6) | NA (6) |
|
Ceftazidime (30 µg) |
S (30) | S (31) | S (32) |
|
Ceftriaxone (30 µg) |
S (26) | S (40) | S (31) |
|
Meropenem (10 µg) |
S (30) | S (28) | S (23) |
|
Chloramphenicol (30 µg) |
S (30) | S (31) | S (28) |
|
Ciprofloxacin (5 µg) |
S (33) | S (35) | S (26) |
|
Co-trimoxazole (25 µg) |
S (24) | S (22) | S (23) |
|
Gentamicin (10 µg) |
S (20) | S (19) | S (18) |
*TCBS, thiosulfate-citrate-bile salts-sucrose; O129, disks impregnated with 2,4-diamino-6,7di-iso-propylpteridine phosphate for the presumptive identification of Vibrio spp. from other gram-negative rods; TSI, triple sugar iron; NA, not applicable; S, susceptible (derived according to criteria from [4]).
