PMID- 12640204 OWN - NLM STAT- MEDLINE DCOM- 20030423 LR - 20200930 IS - 1525-4135 (Print) IS - 1525-4135 (Linking) VI - 32 IP - 4 DP - 2003 Apr 1 TI - A cluster of human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis in Jujuy, Argentina. PG - 441-5 AB - Compared with other regions in Argentina, greater human T-cell lymphotropic virus type I (HTLV-I) seroprevalence has been reported in Jujuy Province, where it reaches 2.32% in the general population, so that a search for HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) cases deserved to be carried out. Accordingly, a clinically diagnosed and serologically confirmed cluster of cases in 1 man and 10 women, including 2 sisters, is described here. Most patients (9/11) were born in Cochinoca Department, located in an Andes highland area called Puna Jujena, situated at more that 3400 m above sea level. No history of risk factors was disclosed, except for a single transfusion in 1 patient. In contrast to the Andean region of Bolivia, where high HTLV-I seroprevalence is in part attributable to Japanese immigrants, the Jujuy population mainly consists of aborigines, mestizos, and European descendants. Therefore, the long-term presence of virus in Jujuy natives may be taken for granted. Considering the HAM/TSP cluster described here plus previously reported isolated cases in neighboring Salta Province, we speculate that the Puna Jujena region and regions in that vicinity would be a microepidemic focus of disease. To determine the role of possible pathogenic cofactors such as geographic, ethnic, genetic, and cultural features, further pertinent surveys are required in subtropical northwestern Argentina. FAU - Biglione, Mirna M AU - Biglione MM AD - National Reference Center of AIDS, Buenos Aires, Argentina. mbiglione@fmed.uba.ar FAU - Pizarro, Manuel AU - Pizarro M FAU - Puca, Alberto AU - Puca A FAU - Salomon, Horacio E AU - Salomon HE FAU - Berria, Maria I AU - Berria MI LA - eng PT - Journal Article PL - United States TA - J Acquir Immune Defic Syndr JT - Journal of acquired immune deficiency syndromes (1999) JID - 100892005 SB - IM MH - Argentina/epidemiology MH - Cluster Analysis MH - Disease Outbreaks MH - Female MH - Geography MH - Humans MH - Incidence MH - Male MH - Paraparesis, Tropical Spastic/complications/*epidemiology MH - Siblings MH - Surveys and Questionnaires EDAT- 2003/03/18 04:00 MHDA- 2003/04/24 05:00 CRDT- 2003/03/18 04:00 PHST- 2003/03/18 04:00 [pubmed] PHST- 2003/04/24 05:00 [medline] PHST- 2003/03/18 04:00 [entrez] AID - 10.1097/00126334-200304010-00015 [doi] PST - ppublish SO - J Acquir Immune Defic Syndr. 2003 Apr 1;32(4):441-5. doi: 10.1097/00126334-200304010-00015.