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Table 2 Impact of MDA on microfilaria prevalence at sentinel sites in four endemic regions/states of Myanmar

From: Rapid progress towards elimination of lymphatic filariasis in endemic regions of Myanmar as a result of 16 years of anti-filarial activities (2001–2016)

Region/state

No. of endemic IUsa

Year of post-MDA survey

No. of sentinel sites

mf prevalence (range)

Overall mf prevalence (%)

No. of sentinel sites with mf prevalence

< 1%         > = 1%

Magway

04

2001

04

1.18–7.1

4.7

0

4

2002

04

0.19–9.17

3.9

1

3

2003

04

0.19–4.0

2.6

1

3

2004

04

0.0–2.5

1.45

1

3

2005

04

0.4–3.4

1.8

1

3

2007

04

0.0–2.5

1.1

2

2

2008

04

0.0–2.8

1.12

3

1

2010

04

0.0–2.7

1.45

2

2

2011

04

0.0–0.4

0.2

4

0

2012

02

0.8–2.2

1.5

1

1

2014

01

0.33

0.33

1

0

Sagaing

06

2002

06

3.0–15.1

7.9

0

6

2004

06

0.6–4.7

2.6

1

5

2007

06

0.0–3.6

1.43

2

4

2009

06

0.0–2.1

0.9

4

2

2010

02

0.0–1.7

0.8

1

1

2012

01

0.79

0.79

1

0

2014

05

0.0–1.89

1.1

3

2

Mandalay

07

2003

10

0.2–14.7

5.0

3

7

2011

13

0.0–8.8

2.7

5

8

2014

12

0.0–3.2

1.19

6

6

Rakhine

04

2003

06

0.0–12.6

3.0

2

4

2007

08

0.0–2.8

0.57

6

2

2009

07

0.0–0.8

0.26

7

0

  1. IU implementation unit, MDA mass drug administration, mf microfilaria
  2. aIn Magway, MDA started in 02 IUs in 2001, later 02 more IUs were added in 2002; In Sagaing MDA started in 06 IUs, later stopped in 03 IUs in 2009; In Rakhine, MDA started in 04 IUs, later stopped in all 04 IUs in 2009