Blood isolates of Staphylococcus
aureus
at a U.S. Hospital, 1993-2004
%RIS and histograms:
Pseudomonas aeruginosa
pneumoniae
Amikacin vs. Gentamicin
Scatterplot: Klebsiella pneumoniae
Third-Generation cephalosporins
United
andStates ESBL
hospital
South
America
hospital
pneumoniae
Multi-resistant clone beginning in July 1991
S.аureus Total and by
Resistance Profile
BacTrack Expert System
Isolate alerts
WHONET-SaTScan Clusters - by 
Species
Clusters |
RI |
Start date |
End date |
observed |
expecte |
observe |
expecte |
|
|
|
|
Initial |
Initial |
Total |
Total |
|
|
|
|
|
d |
d |
d |
A. baumanii |
250 |
10/18/200 |
12/9/200 |
6 |
0.76 |
20 |
8.15 |
|
|
4 |
4 |
|
|
|
|
S. |
500 |
8/19/2004 |
8/25/200 |
8 |
1.09 |
10 |
1.57 |
marcescens |
|
|
4 |
|
|
|
|
B. cepacia |
>1,00 |
3/30/2005 |
5/29/200 |
5 |
0.31 |
16 |
4.15 |
|
0 |
|
5 |
|
|
|
|
SaTScan space-time permutation Jan 2004 - Dec 2005 outbreaks Range of Cluster Length - 1 to 100d
Total Hospitals - all organisms, first per patient “Nosocomial” isolates (>= Hospital Day 3) Limit to clusters >= 4 isolates
Acinetobacter baumanii isolates 2003-2005
Start date: 10/18/04 |
End date: 12/9/04 |
clusters
by Antimicrobial resistance
Cluster |
RI |
Start |
End |
Initial |
Initial |
Total |
Total |
s |
|
date |
date |
observe |
expecte |
observe |
expecte |
|
profile |
d |
d |
d |
|||
|
|
|
|
d |
|||
ACFLN |
160 |
6/2/2005 |
6/26/2005 |
2 |
0.12 |
2 |
0.12 |
ACFLNG |
>1,00 |
10/2/200 |
12/29/200 |
6 |
1.62 |
16 |
8.16 |
T |
0 |
4 |
4 |
|
|
|
|
A=Ampicillin, C=Cefotaxime, F=Ceftazidime, L=Levofloxacin, N=Nitrofurantoin, G=Gentamicin, T=Trimethoprim/Sulfamethoxazole
ACFLN = Non-susceptible to 5 antimicrobials ACFLNGT = Non-susceptible to 7 antimicrobials
SaTScan space-time permutation Jan 2004 - Dec 2005 outbreaks Range of Cluster Length - 1 to 100d
“Nosocomial isolates” (>= Hospital Day 3) Cluster Size - 1 to 100d