Geographic independence of HTLV-I and HTLV-II foci in the Andes highland, the Atlantic coast, and the Orinoco of Colombia

Autor: Chihaya Fujiyama, Yoshihiko Katahira, Lily Chan, Kazuo Tajima, Fidel Lopez, Daiten Matsumoto, Abraham Blank, Tomoyuki Miura, Fernando Sanzon, Shunro Sonoda, Michelle Blank, Shinji Yashiki, Hiroki Miyashita, Masanori Hayami, Toshinobu Fujiyoshi, Vladimir Zaninovic, Takashi Sawada, Guillermo Velandia
Rok vydání: 1994
Předmět:
Zdroj: AIDS research and human retroviruses. 10(1)
ISSN: 0889-2229
Popis: To clarify the ethnic specificity of human T cell leukemia virus type I (HTLV-I) and type II (HTLV-II) carriers among Colombian native Indians, we investigated the geographic distribution of HTLV-I and HTLV-II seroprevalence among the isolated ethnic groups of Mongoloid origin in the Andes highlands and the Atlantic coast of Colombia. HTLV-I carriers were found in 1.6% (1/62 samples) of Inga, 8.5% (5/59) of Kamsa, and 0% (0/55) of Cumbal Indians who live in the Andes highlands at 3000 m above sea level. On the other hand, HTLV-II carriers were found in 4.1% (5/123) of Wayuu Indians, who live in the Guajira region of the Atlantic coast of Colombia at a distance of 1000 km from the Andes highlands. This ethnic specificity of HTLV-II was similarly observed among Guahibo Indians in the Orinoco. The seroprevalence of HTLV-I and HTLV-II was mutually exclusive among Inga, Kamsa, and Wayuu Indians. These results suggest that HTLV-I and HTLV-II may have evolved among Mongoloid populations and been independently transmitted among two different lineages of Colombian native Indians, Andes highlanders and Atlantic coast lowlanders.
Databáze: OpenAIRE