Table 2 Global TB incidence, and representativity of the Beijing lineage and the Beijing GC1237-outbreak strain since the first isolate was identified in 1993, including the data from this study (2013-4) and those from previous studies (1993–2008).

From: A Mycobacterium tuberculosis Beijing strain persists at high rates and extends its geographic boundaries 20 years after importation

Period

Incidence rate/100 000

N isolates analyzed

N Beijing (%)

N strain GC1237 (%)

Sampled population

Reference

1993

28.5

179

10 (5.5)

10 (5.5)

Gran Canaria island

Caminero et al., 2001

1994

29,47

148

12 (8.1)

12 (8.1)

Gran Canaria island

Caminero et al., 2001

1995

25,8

110

18 (16.4)

18 (16.4)

Gran Canaria island

Caminero et al., 2001

1996

29.0

129

35 (27.1)

35 (27.1)

Gran Canaria island

Caminero et al., 2001

1999*

29.3

40

9 (22.5)

nd

Gran Canaria island

not published

2002

20,48

167

19 (11.4)

nd

Gran Canaria island

not published

2003

23,17

165

13 (7.8)

nd

Gran Canaria island

not published

2004

19,1

129

15 (11.6)

nd

Gran Canaria island

not published

2007

17,48

169

37 (21.9)

27 (15.98)

Las Palmas Province

Millan et al., 2012

2008

15,17

151

33 (21.8)

29 (19.2)

Las Palmas Province

Millan et al., 2012

2013

7,18

135

26 (19.2)

24 (17.7)

Canary Islands

This work

2014

7,01

109

27 (24.7)

27 (24.7)

Canary Islands

This work

  1. *(Last quarter).