An Outbreak of Lymphadenitis Associated with Stenotrophomonas (Xanthomonas) maltophilia in Omani Goats

2003 ◽  
Vol 50 (2) ◽  
pp. 102-104 ◽  
Author(s):  
E. H. Johnson ◽  
R. Al-Busaidy ◽  
M. S. Hameed
Keyword(s):  
Xanthomonas Maltophilia

The effect of distribution system biofilm bacteria on copper concentrations in drinking water

2002 ◽  
Vol 2 (1) ◽  
pp. 319-324
Author(s):  
M.M. Critchley ◽  
N.J. Cromar ◽  
N. McClure ◽  
H.J. Fallowfield
Keyword(s):  
Public Health ◽  
Drinking Water ◽  
Distribution System ◽  
Xanthomonas Maltophilia ◽  
Biofilm Bacteria ◽  
Rhodococcus Sp

This study investigated the potential for distribution system biofilm bacteria to elevate copper concentrations in drinking water. Biofilms were sampled from household copper reticulation pipes and grown on R2A agar. Laboratory coupon experiments were used to determine the effect of single isolate biofilms on aqueous copper concentrations. The majority of biofilm bacteria did not affect copper concentrations in comparison to sterile controls. However, several bacteria including Acidovorax delafieldii, Cytophaga johnsonae and Micrococcus kristinae were shown to significantly elevate copper concentrations in drinking water. In contrast, the bacteria Rhodococcus sp. and Xanthomonas maltophilia were shown to significantly decrease copper levels in comparison to controls. The significance of biofilm bacteria to increase copper concentrations in drinking water has implications for public health by increasing concentrations to levels toxic to humans.

Xanthomonas maltophilia : an emerging pathogen in patients with HIV disease

1998 ◽  
Vol 9 (4) ◽  
pp. 201-207 ◽  
Author(s):  
Roberto Manfredi ◽  
Anna Nanetti ◽  
Morena Ferri ◽  
Francesco Chiodo
Keyword(s):  
Severe Disease ◽  
Bacterial Pathogen ◽  
Corticosteroid Treatment ◽  
Lymph Node Involvement ◽  
Hiv Disease ◽  
Salmonella Spp ◽  
Xanthomonas Maltophilia ◽  
Venous Catheterization ◽  
Increased Risk ◽  
Node Involvement

Fifty-four episodes of Xanthomonas maltophilia infection were observed in 52 HIV-infected patients out of 2062 assessed (2.52%) over a 6-year period: sepsis/ bacteraemia in 44 cases, lower airways infection in 5 cases, urinary tract infection and pharyngitis in 2 cases each, and lymph node involvement in one patient. X. maltophilia represented the fourth most common non-mycobacterial bacterial pathogen responsible for bacteraemia in HIV-infected patients: 44 cases out of 721 diagnosed (6.1%). When compared with non-typhoid Salmonella spp. bacteraemia, an increased risk to develop X. maltophilia disseminated infection was seen according to the progression of HIV-related immunodeficiency, the occurrence of leukopenia-neutropenia, central venous catheterization, previous antibiotic and/or corticosteroid treatment, and hospitalization. In 3 patients suffering from concurrent AIDS-related disorders, X. maltophilia infection contributed to death, while a recurrence occurred in 2 cases only. Due to the poor antimicrobial susceptibility of this pathogen (also confirmed in our series), X. maltophilia bacteraemia associated with advanced HIV infection and concurrent risk factors, may represent a potentially severe disease.

Sign in / Sign up

Export Citation Format

Share Document