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Table 1 The Mf rate and disease rate reported in various studies in the Cook Islands

From: Elimination of lymphatic filariasis as a public health problem from the Cook Islands

Place Year Number of people examined for Mf Mf rate/Ag rate (%) Number of people examined for chronic disease Elephantiasis rate (%)#* Author
Southern group of islands
 Rarotonga 1925 197 2.0 197 40.1 Mckenzie 1925#
 Aitutaki 1925 71 5.6 71 50.7 Mckenzie 1925#
 Atiu 1926   900 2.4 Lambert 1926#
 Mauke 1926 46.2 560 4.1 Lambert 1926#
 Mitiaro 1926 54.8 180 0 Lambert 1926#
 Rarotonga 1926 35.5 Lambert 1926#
 Mangaia 1926 26.0 Lambert 1926#
 Aitutaki 1926 49.1 Lambert 1926#
 Aitutaki 1949 240 42.5 Davies 1949#
 Rarotonga 1957 554 23.3 554 4.3 Iyengar 1957#
 Aitutaki 1957 1297 20.9 1297 3.7 Iyengar 1957#
 Rarotonga 1959 1890 22.3 358 2.9 McCarthy 1959#
 Aitutaki 1959 609 29.2 528 4.2 McCarthy 1959#
 Aitutaki* 1969* 2492 0.8 Review of sub-periodic filariasis in South Pacific, 1980
 Aitutaki* 1971* 2600 0.2 Review of sub-periodic filariasis in South Pacific, 1980
 Mauke 1975 376 33.2 459 2.6 Weller et al. 1982
 Mauke 1975 376 49.4 Ag rate 180 13.3% Hydrocele rate Steel et al. 2001
 Mitiaro Rarotonga 1977 273 18.3  
 Rarotonga 1991 5868 (outpatients) 0.9 Country data, PacELF, 2000
 Rarotonga 1992 2664 (outpatients) 1.0 Country data, PacELF, 2000
 Aitutaki 1992 1370 3.2 Country data, PacELF, 2000
 Mauke** 1992** 627 4.3 McCarthy et al. (1995)
 Mauke** 1992** 627 5.4% Ag rate Steel and Ottesen, 2001
Northern group of islands
 Pukapuka 1959 218 29.4 McCarthy 1959#
 Pukapuka 1965 498 28.4 498 3.8 Iyengar 1965#
 Penrhyn 1959 274 5.8 McCarthy 1959#
 Rakahanga 1959 226 8.4 McCarthy 1959#
 Palmerston 1959 69 8.7 McCarthy 1959#
 Manihiki 1959 371 19.7 McCarthy 1959#
  1. *Mass drug administration (MDA) in Aitutaki in 1968
  2. **MDA in Mauke and other out islands in 1986
  3. #Cited in Sasa [1]
  4. #*Irrespective of the degree of swelling, all cases of lymphedema were classified as elephantiasis, whereas only advanced stages are referred to as elephantiasis in the current literature