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Table 1 Antibiotic resistance prevalence and MIC50/90 values of M. gallisepticum field isolates to select antibiotics

From: Efficacy data of halogenated phenazine and quinoline agents and an NH125 analogue to veterinary mycoplasmas

 

No. (%) Resistance and MIC50/90 values (μg/mL)

Study

Country

Years

Isolate Total

Enro Res.

Enro MIC50/90

Ery Res.

Ery MIC50/90

Til. Res.

Til MIC50/90

Tylosin Res.

Tylosin MIC50/90

ChlTet Res.

ChlTet MIC50/90

[12]a

Israel

1997–2005

32

7 (22)

na

na

na

12 (38)

na

12 (38)

na

na

na

2006–2010

18

16 (89)

na

na

na

13 (72)

na

13 (72)

na

na

na

Total

  

50

23 (46)

0.25/5

na

na

25 (50)

0.1/≥10

25 (50)

0.05/2.5

na

na

[11]a

AU

1986–1995

8

0

na

na

na

na

na

na

na

na

na

US

1996–2008

5

0

na

na

na

na

na

na

na

na

na

UK

2004–2005

3

1 (33.3)

na

na

na

na

na

na

na

na

na

GER

2006–2010

15

8 (53.3)

na

na

na

na

na

na

na

na

na

Austria

2008–2010

4

3 (75)

na

na

na

na

na

na

na

na

na

NE

1999–2005

8

3 (37.5)

na

na

na

na

na

na

na

na

na

[6]a,b

Jordan

2004–2005

22

1 (4.5)b

≤ 0.03 / ≤ 0.03

2 (9.1)b

≤ 0.03 / 4

2 (9.1)a

≤ 0.03 / ≤ 0.03

0b

≤ 0.03 / ≤ 0.03

0c

1 / 2

2007–2008

7

5 (71.4)b

2 / 8

5 (71.4)b

≥64 / ≥64

4 (57.1)a

2 / 32

1 (14.3)b

0.125 / 4

1 (14.3)c

4 / 32

[13]b

Egypt

2012–2014

14

na

na

5 (35.7)

4/32

na

na

2 (14.3)

0.25 / 4

na

na

[14]b,c

SA

2003–2015

10

0

0.25 / 1

na

na

na

 

6 (60)

10 / 16

2 (20)c

4 / 16

  1. aResistance breakpoints to tylosin (≥ 0.63 μg/mL), enrofloxacin and tilmicosin (≥ 1.25 μg/mL), were extracted from Gerchman et al. [12]
  2. bResistance breakpoints to enrofloxacin (≥ 2) and erythromycin (> 4) were extracted from Hannan et al. [15] and the resistance breakpoint to tylosin (≥ 4 μg/mL) was extracted from Beylefeld et al. [14]
  3. cOxytetracycline resistance breakpoint (≥ 16 μg/mL) used for chlortetracycline per AU-Australia; ChlTet-chlortetracycline; Enro-enrofloxacin; Ery-erythromycin; GER-Germany; na-not tested; NE-Netherlands; No-number; Res-resistance; SA-South Africa; Til-tilmicosin; UK-United Kingdom; US-United States