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Bacterial pathogen isolation and percentage of antimicrobial resistance, out-patient setting, 2022

Bacterial pathogen isolation and percentage of antimicrobial resistance, out-patient setting, 2022

The presented figures refer to specimens received during the designated month.

Throat swab specimens
Organism Drugs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Beta-haemolytic streptococcus of Lancefield Group A, C & G Penicillin 0% 0% 0% - - - - - - - - -
Erythromycin 0% 0% 100% - - - - - - - - -
No. of isolates 1 1 1 0 0 0 0 0 0 0 0 0

 

Sputum specimens
Organism Drugs /
Resistance phenotype
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Streptococcus pneumoniae Penicillin 50% - 0% - 0% 0% 0% 0% - - - -
Erythromycin 100% - 100% - 100% 100% 50% 100% - - - -
Levofloxacin 0% - 0% - 0% 0% 0% 0% - - - -
No. of isolates 2 0 1 0 1 1 2 1 0 0 0 0
Haemophilus influenzae Ampicillin 75% 60% 100% 0% 100% 75% 38% 75% 100% 100% 33% 25%
Amoxicillin + clavulanic acid 42% 40% 100% 0% 60% 25% 25% 25% 50% 50% 33% 25%
No. of isolates 12 5 1 1 5 12 8 8 4 2 3 4
Moraxella catarrhalis BL+ 100% 100% - 100% 100% 100% 100% - - - 100% 100%
No. of isolates 2 3 0 1 1 1 1 0 0 0 2 1

 

Urine specimens
Organism Drugs /
Resistance phenotype
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Escherichia coli Ampicillin 66% 63% 62% 63% 66% 61% 62% 65% 63% 60% 63% 61%
Amoxicillin + clavulanic acid 7% 6% 7% 4% 5% 5% 7% 6% 6% 5% 6% 8%
Nitrofurantoin 1% 1% 1% 1% 0% 1% 2% 0% 1% 1% 2% 1%
Co-trimoxazole 30% 30% 30% 32% 27% 30% 32% 29% 30% 30% 26% 30%
Levofloxacin# 37% 31% 35% 34% 33% 31% 33% 36% 38% 35% 39% 38%
ESBL+ 20% 18% 16% 14% 17% 15% 19% 16% 16% 15% 17% 13%
No. of isolates 625 413 319 341 492 594 561 608 480 553 597 470
Klebsiella pneumoniae complex^ Amoxicillin + clavulanic acid 3% 10% 8% 5% 5% 4% 8% 7% 10% 5% 9% 5%
Nitrofurantoin 28% 32% 22% 22% 20% 15% 25% 38% 27% 31% 25% 30%
Co-trimoxazole 11% 17% 20% 11% 11% 12% 12% 11% 17% 17% 13% 17%
Levofloxacin# 7% 9% 12% 11% 10% 7% 11% 8% 7% 9% 9% 8%
ESBL+ 11% 16% 8% 9% 6% 9% 14% 13% 11% 9% 11% 11%
No. of isolates 122 77 59 65 109 123 107 133 108 108 150 83
Proteus mirabilis^^ Ampicillin 44% 34% 51% 46% 44% 46% 36% 40% 49% 49% 39% 49%
Amoxicillin + clavulanic acid 16% 10% 17% 10% 15% 18% 10% 6% 11% 25% 7% 22%
Co-trimoxazole 41% 30% 51% 46% 47% 49% 33% 38% 38% 48% 28% 40%
Levofloxacin# 17% 26% 21% 27% 21% 26% 15% 28% 29% 24% 32% 24%
No. of isolates 88 50 47 41 62 65 72 72 55 67 57 55

 

Enteric specimens
Organism Drugs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Campylobacter spp. Erythromycin 50% 0% - - 0% 60% 0% 100% 0% 50% 0% -
No. of isolates 2 1 0 0 3 5 2 1 1 2 1 0
Salmonella spp. Ampicillin 83% 100% - 0% 100% 43% 17% 56% 60% 57% - 0%
Co-trimoxazole 67% 50% - 0% 0% 43% 17% 11% 0% 14% - 0%
Ciprofloxacin 0% 0% - 0% 0% 0% 0% 0% 0% 14% - 0%
No. of isolates 6 2 0 1 1 7 6 9 5 7 0 1
Shigella spp. Ampicillin - - - - - - - - - - - -
Ciprofloxacin# - - - - - - - - - - - -
No. of isolates 0 0 0 0 0 0 0 0 0 0 0 0
Vibrio spp. Tetracycline 50% 0% - - 0% 0% 0% 0% 0% 17% 0% 0%
No. of isolates 2 1 0 0 3 10 4 3 3 6 4 1

 

Soft tissue specimens
Organism Drugs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Staphylococcus aureus Oxacillin
[MRSA]
27% 20% 12% 33% 18% 22% 18% 24% 26% 20% 30% 35%
No. of isolates 66 44 41 43 50 58 55 62 65 65 69 43

 

Abbreviations:
MRSA = methicillin-resistant Staphylococcus aureus
BL+ = beta-lactamse positive
ESBL+ = extended-spectrum beta-lactamase positive

Klebsiella pneumoniae complex is 100% resistant to ampicillin.
^^Proteus mirabilis is 100% resistant to nitrofurantoin.
#Updated breakpoint according to CLSI document M100 29th edition was implemented from April 2019 onwards.