Table 1 Available studies on the prevalence of trachoma: 1996 to 2007
CountryDate of surveyLocationType of surveyAge groupSources
Afghanistan2006Four provincesDoor-to-door assessmentAll agesComprehensive Eye Care Program, Ministry of Public Health Afghanistan
Australia1997–2003Aboriginal and Torres Strait Islander communitiesScreening in schools and in remote communities, clinical assessmentsAll agesMak DB et al. The Office for Aboriginal and Torres Strait Islander Health, Australian Government Department of Health
Brazil2003–2006Thirteen statesSchool screening1–9Trachoma Control Program, Health Surveillance Secretariat, Brazil Ministry of Health
Burkina Faso2005Bugondè, Diapaga districtsPopulation-based survey1–9, 15 and olderProgramme National de Prévention de la Cécité, Ministry of Health, Burkina Faso
Cambodia2000Six endemic regionsTrachoma rapid assessment0–14, 40 and olderNational Prevention of Blindness Program, National Program for Eye Health, Ministry of Health, Cambodia
Cameroon2006Kolofata district, Far North ProvincePopulation-based survey1–10, women over 14Einterz EM et al 2008
Chad2001–2005Eight provincesPopulation-based survey1–10, women over 14Dézoumbé D. et al 2007, Programme National de lutte contre la cécité, Ministry of Health, Republic of Chad
China2003–2006Ten provincesTrachoma rapid assessment1–9, 40 and olderNational Programme for Prevention of Blindness, Ministry of Health, China
Egypt2001Menofiya GovernoratePopulation-based survey2–6, 50 and olderGamal Ezz al Arab et al 2001
Eritrea2006Three endemic regions: North Red Sea, Debub, Gash BarkaPopulation-based survey1–9, 15 and olderBlindness Prevention Program, Ministry of Health of the State of Eritrea
Ethiopia2005–2006All regions of the countryPopulation-based surveyAll agesBerhane Y et al 2006, Federal Ministry of Health of Ethiopia
Gambia2006North Bank, Lower RiverPopulation-based survey0–9Prevention of Blindness Program, Ministry of Health, Gambia
Ghana2000–2003Northern Region, Upper West RegionPopulation-based survey1–10, 40 and olderNational Eye Care Programme, Ministry of Health, Ghana
Guinea2001–2002Upper and Middle GuineaPopulation-based survey and assessment0–10, women over 14,Programme de lutte contre la cécité, Ministry of Health, Guinea
Guinea-Bissau2005Whole countryPopulation-based surveyall agesPrevention of Blindness and Deafness, Ministry of Public Health, Republic of Guinea-Bissau
India2006Punjab, Rajasthan, Uttar Pradesh, Uttarakhand, Haryana, GujaratTrachoma rapid assessment<10, 15 and olderDirectorate General of Health Services, Ministry of Health and Family Welfare, India
Iran (Islamic Republic of)2002Four provinces in the southTrachoma rapid assessmentAll agesMinistry of Health and Education,
Kenya2004Five endemic districts in Rift Valley Province and one in Eastern ProvincePopulation-based survey1–9, 15 and olderKarimurio J et al 2006
Malawi2002–2003Salima and Chikwana districts (Central and South Provinces)Trachoma rapid assessment5–9, and 0–9National Programme for Prevention of Blindness, Ministry of Health, Malawi
Mali1996 and 2005–2006All endemic regionsPopulation-based survey0–9, 15 and olderProgramme national de lutte contre la cécité, Ministry of Health, Mali
Mauritania2004National surveyPopulation-based survey1–9, 14 and olderProgramme national de lutte contre la cécité, Ministry of Health, Mauritania
Mexico2006ChiapasSurveillance house to houseAll agesState Institute of Health, Chiapas, Mexico
Morocco2004Five endemic regionsCommunity-based surveillanceAll agesProgramme national de lutte contre la cécité, Ministry of Health, Kingdom of Morocco
Mozambique2002Northern Manica ProvincePopulation-based survey1–9, 40 and olderNational Programme for Prevention of Blindness, Ministry of Health, Mozambique
Myanmar2006Meiktila DistrictPopulation-based survey40 and older,Durkin SR et al 2007
Nepal1996–2002 2003, 2006Several endemic districtsPopulation-based survey and trachoma rapid assessmentall agesNational Trachoma Program, Ministry of Health and Population, Nepal
Niger2001–2006Several districts in the Zinder, Maradi and Diffa regionsPopulation-based survey1–9, 15 and olderProgramme national de lutte contre la cécité, Ministry of Public Health, Republic of Niger and Abdou A et al 2007
Nigeria2005–2006Eight endemic regionsPopulation-based survey1–9, 15 and olderNational Programme for Prevention of Blindness, Ministry of Health, Nigeria
Oman2005Three regions: Dhakhiliya, North Sharqiya, South BatinahPopulation-based survey1–5Khandekar R. et al 2006
Pacific Islands SubregionKiribati, Nauru, Solomon Islands, Vanuatu, FijiTrachoma rapid assessment1–10, 40 and olderMathew A et al 2007
Pakistan2004All four provinces and in the Northern AreaDoor-to-door assessmentAll agesPrevention and Control of Blindness Programme, Ministry of Health, Government of Pakistan
Senegal2000–2004Whole country and Thiès RegionPopulation-based survey1–9, women over 14Saal MB et al 2003 and Programme National de Lutte contre la Cécité, Ministry of Health, Senegal
Sudan2003, 2005–2006Eastern Equatoria, Upper Nile, Unity, Northern, Kassala and Khartoum StatesPopulation-based survey1–9, 15 and olderNgondi J et al 2005, 2006 and Prevention of Blindness Administration Federal Ministry of Health, Sudan
Tanzania (United Repubic of)2004–2006Fifty districts in endemic regionsPopulation-based survey1–9, 15 and olderNational Eye Care Program, Ministry of Health and Social Welfare, United Republic of Tanzania
Uganda2006Three districts in the Northern and Eastern regionsPopulation-based survey1–9, 15 and olderNational Programme for Prevention of Blindness, Ministry of Health, Uganda
Viet Nam2001, 2006Districts in the northern provincesSchool-based assessment and population-based survey1–5, 35 and olderNational Programme for Prevention of Blindness, Ministry of Health Viet Nam and Khandekar R et al 2006
Yemen2004Nine Governorates and Socotra IslandTrachoma rapid assessment1–9Al Khatib TK et al 2006
Zambia2001–2003Gwembe District, Southern RegionExhaustive screening of population in chosen villagesAll agesAstle WF et al 2006