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Table 2 Accumulation of children susceptible to measles in the Cuddalore district, Tamil Nadu, India, 1988 – 2004

From: Measles transmission following the tsunami in a population with a high one-dose vaccination coverage, Tamil Nadu, India 2004–2005

Year

Estimated population#

Birth cohort

Vaccination coverage*

Vaccine efficacy**

Children susceptible

Cumulated susceptible population

1988

2,076,264

44,432

103.19%

85%

5,459

5,459

1989

2,091,648

46,853

105.50%

85%

4,837

10,296

1990

2,107,146

44,461

101.67%

85%

6,038

16,334

1991

2,122,759

44,153

100.65%

85%

6,378

22,712

1992

2,138,488

44,267

104.57%

85%

4,921

27,633

1993

2,154,333

42,009

102.70%

85%

5,337

32,970

1994

2,170,295

41,670

102.51%

85%

5,362

38,332

1995

2,186,376

44,383

104.92%

85%

4,803

43,135

1996

2,202,576

42,289

101.57%

85%

5,779

48,913

1997

2,218,896

42,603

100.74%

85%

6,124

55,037

1998

2,235,337

42,918

99.28%

85%

6,700

61,737

1999

2,251,900

43,462

101.25%

85%

6,058

67,795

2000

2,268,586

43,784

101.13%

85%

6,148

73,944

2001

2,285,395

44,108

105.18%

85%

4,674

78,617

2002

2,302,329

44,435

102.56%

85%

5,697

84,314

2003

2,319,388

44,764

101.46%

85%

6,159

90,473

2004

2,336,574

45,096

99.57%

85%

6,928

97,401

  1. #Census data 2001. Population growth rate of 11.19%
  2. *Vaccination coverage using administrative method
  3. **Vaccination between nine and 12 month of age.