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Bacterial pathogen isolation and percentage of antimicrobial resistance, out-patient setting, 2020

Bacterial pathogen isolation and percentage of antimicrobial resistance, out-patient setting, 2020

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% - 0% 0%
Erythromycin 50% 67% 0% - 100% 100%
No. of isolates 6 3 1 0 1 1

 

Sputum specimens
Organism Drugs /
Resistance phenotype
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Streptococcus pneumoniae Penicillin 29% 33% 0% 17% 38% 50%
Erythromycin 88% 100% 86% 83% 88% 100%
Levofloxacin 0% 0% 0% 0% 0% 0%
No. of isolates 17 6 7 6 8 2
Haemophilus influenzae Ampicillin 40% 44% 57% 50% 54% 65%
Amoxicillin + clavulanic acid 13% 18% 14% 15% 29% 12%
No. of isolates 115 34 21 20 28 17
Moraxella catarrhalis BL+ 100% 100% 100% 100% 100% 100%
No. of isolates 163 15 12 3 7 12

 

Urine specimens
Organism Drugs /
Resistance phenotype
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Escherichia coli Ampicillin 68% 66% 65% 66% 62% 66%
Amoxicillin + clavulanic acid 7% 8% 5% 5% 5% 5%
Nitrofurantoin 0% 3% 1% 2% 1% 0%
Co-trimoxazole 34% 36% 36% 31% 33% 32%
Levofloxacin# 32% 37% 37% 36% 36% 34%
ESBL+ 20% 19% 17% 15% 16% 19%
No. of isolates 465 375 471 412 533 602
Klebsiella pneumoniae complex^ Amoxicillin + clavulanic acid 5% 5% 9% 10% 6% 8%
Nitrofurantoin 31% 27% 32% 18% 25% 19%
Co-trimoxazole 30% 15% 11% 15% 17% 14%
Levofloxacin# 14% 10% 7% 11% 12% 8%
ESBL+ 10% 8% 3% 9% 13% 4%
No. of isolates 87 73 92 89 115 110
Proteus mirabilis^^ Ampicillin 43% 46% 28% 39% 36% 47%
Amoxicillin + clavulanic acid 11% 16% 6% 7% 9% 12%
Co-trimoxazole 41% 42% 34% 33% 40% 40%
Levofloxacin# 18% 30% 15% 20% 18% 19%
No. of isolates 44 50 53 54 55 75

 

Enteric specimens
Organism Drugs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Campylobacter spp. Erythromycin 0% 0% 0% 0% 0% 33%
No. of isolates 2 1 4% 2 2 3
Salmonella spp. Ampicillin 67% 100% 100% 75% 75% 53%
Co-trimoxazole 33% 0% 50% 0% 25% 41%
Ciprofloxacin 0% 100% 0% 0% 100% 0%
No. of isolates 3 1 2 4 4 17
Shigella spp. Ampicillin - - - - - -
Ciprofloxacin# - - - - - -
No. of isolates 0 0 0 0 0 0
Vibrio spp. Tetracycline 0% 0% 0% 0% 0% 0%
No. of isolates 1 3 1 2 5 10

 

Soft tissue specimens
Organism Drugs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Staphylococcus aureus Oxacillin
[MRSA]
36% 29% 32% 21% 26% 38%
No. of isolates 76 66 91 73 89 74

 

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.