Field studies undertaken
| Area | Latitude | Climate | Subjects | Date | Organisers |
|---|---|---|---|---|---|
| UK: London | 51.5°N | Temperate | Adult whites with professional backgrounds (n=68) | 1979–90 | I Menzies, C Noone, N Fox, G Houston, S Catt |
| Greece: Athens | 38°N | Temperate | Adult whites with professional backgrounds (n=32) | 1986–87 | T Kakourou |
| Northern Italy: Parma | 45°N | Temperate | Adult white hospital staff and relatives (n=18) | 1987 | C Cafarelli |
| Texas: El Paso, SW United States | 31°N | Semi-desert, alt. 3700 ft | Adult Hispanics and non-Hispanic whites, professional background (n=74) | 1990–91 | M Zuckerman, N Casner |
| Qatar: Doha | 25°N | Very arid limestone desert | Arab and Indian adult professionals, mostly hospital staff (n=32) | 1993 | I Menzies |
| Thailand: Mahidol | 14°N | Tropical, rainfall moderate | Adult Thai hospital staff (n=25) | 1985 1986 | M Molyneux N Fox, G Houston |
| S. India: Vellore Dindigul | 13°N | Tropical, rainfall moderate | Adult Indian hospital staff and their relatives (n=41) | 1983–85 1993 | C Noone, I Menzies SG Somasundaram |
| Indonesia: Jakarta | 6°S | Tropical, rainfall high | Adult Indonesians, ferry-boat crew and hospital staff (n=24) | 1986 | C Peacock, H Scofield, R Behrens |
| Papua New Guinea, West Sepik Province | 5°N | Tropical, rainfall high | Juvenile inland rural villagers, aged 8 to 18 years, Krissa Village (n=11); Bewani School (n=6) | 1979 | Staff of “Operation Drake” |
| Uganda | 3°N | Equatorial, alt. >3000 ft, rainfall moderate | Adult Africans: first group: hospital staff (n=13); second group: of varied socioeconomic status, documented HIV negative (n=17) | 1988 1995 | L Grellier, E Patterson B Murphy |
| Cameroon | 5°N | Tropical, rainfall high | Adult African university students (n=17) | 1986 | S Nukajam |
| Gambia | 13°N | Tropical, rainfall moderate | Adult Africans, largely hospital staff (n=24) | 1984 | B Slavin |
| Botswana | 23°S | Tropical, semi-desert, alt. >3000 ft | Adult African hospital staff (n=16) | 1987 | R Chasty, P Elliot |
| Jamaica: Kingston | 18°N | Tropical, rainfall high | Adult hospital staff of mixed ethnic origin (n=14) | 1986 | G Houston |