Tegumentary leishmaniasis in Northern Argentina: distribution of infection and disease, in three municipalities of Salta, 1990-1992

Sosa-Estáni, Sergio; Segura, Elsa L.; Salomón, Oscar Daniel; Gómez, Adolfo; Peralta, M.; Coutada, Virgilio; Ruiz, Luis Medina

doi:10.1590/s0037-86822000000600009

Cited by 20 publications

(24 citation statements)

References 21 publications

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“…During 1995-2007, the spatial scan statistic identified 11 clusters of ACL in men along the eastern border of the city that reached the northern city limit. These clusters had ORs ranging from 1.42 to 3.20, and three had a radius equal to zero (clusters [11][12][13][14][15][16][17][18][19][20][21]. Because each identified case uses its respective neighborhood centroid as a reference point, a cluster of zero radius indicates that a specific neighborhood is a cluster in itself.…”

Section: Resultsmentioning

confidence: 99%

“…9 Within the province of Salta, the Orán and San Martin jurisdictions have been affected by ACL outbreaks, and rural zones of Orán have exhibited endemic and epidemic transmission levels. [10][11][12] Furthermore, these localities are characterized by the production of sugar cane, banana, citrus fruits, and green vegetables, which are grown in plantations where rodent plagues are common. These rodents include Akodon sp.…”

Section: Introductionmentioning

confidence: 99%

“…19,20 However, an important number of cases of ACL in children and women have been observed in different areas of South America. 11,[19][20][21][22][23] Particularly in Salta, domiciliary and peridomiciliary exposure to the vector appears to be a common event among affected patients in these demographic groups. 24 A high rate of ACL cases among women and children has been proposed as an indicator of domiciliary and peridomiciliary transmission.…”

Section: Introductionmentioning

confidence: 99%

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Urban Transmission of American Cutaneous Leishmaniasis in Argentina: Spatial Analysis Study

Gil¹,

Nasser²,

Cajal³

et al. 2010

The American Journal of Tropical Medicine and Hygiene

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Urban Transmission of American Cutaneous Leishmaniasis in Argentina: Spatial Analysis Study

Gil¹,

Nasser²,

Cajal³

et al. 2010

The American Journal of Tropical Medicine and Hygiene

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“…However, an outbreak due to Leishmania (Viannia) braziliensis took place in the province of Salta, Argentina, from 1984 to 1987, involving periurban areas, with similar incidence in males and females as well as within the youngest 15,16,19 . The annual incidence rose from 6.4/100,000 inhabitants in 1984 to 28.7/ 100,000 in 1985.…”

Section: Introductionmentioning

confidence: 99%

American cutaneous leishmaniasis outbreak, Tartagal city, province of Salta, Argentina, 1993

Salomón

Zaidenberg²,

Burgos³

et al. 2001

Rev. Inst. Med. trop. S. Paulo

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SUMMARYAn American cutaneous leishmaniasis outbreak, with cases clustering during 1993 in Tartagal city, Salta, was reported. The outbreak involved 102 individuals, 43.1% of them with multiple ulcers. Age (mean: 33 years old) and sex distribution of cases (74.5% males), as well as working activity (70 forest-related), support the hypothesis of classical forest transmission leishmaniasis, despite the fact that the place of permanent residence was in periurban Tartagal. Moreover, during July, sandflies were only collected from one of the 'deforestation areas'. Lutzomyia intermedia was the single species of the 491 phlebotomines captured, reinforcing the vector incrimination of this species. Most infections must have been acquired during the fall (April to June), a pattern consistent with previous sandfly population dynamics data. Based on the epidemiological and entomological results, it was advised not to do any vector-targeted periurban control measures during July. Further studies should be done to assess if the high rate of multiple lesions was due to parasite factors or to infective vector density factors.

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“…Although TL was identified in Argentina almost a century ago, the first recorded outbreak took place in [1984][1985][1986][1987] in the 'Yungas' region, and this was found to be due to Leishmania braziliensis (Sosa Estani et al 2000. After this outbreak, the relative increased incidence of TL both children and females suggested a transmission shift from the forest to peridomestic habitats (Sosa Estani et al 2001, Sosa Estani & Salomon 2002.…”

Section: Tegumentary Leishmaniasis (Tl) Is Endemic In Area Ofmentioning

confidence: 99%

Tegumentary leishmaniasis outbreak in Bella Vista City, Corrientes, Argentina during 2003

Salomón¹,

Sosa-Estáni²,

Ramos

et al. 2006

Mem. Inst. Oswaldo Cruz

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Tegumentary leishmaniasis (TL) is endemic in area of Northern Argentina that includes nine political provinces and three bio-regions: the 'Yungas' and 'Paranaense' subtropical forests, and the xeric 'Chaco'. Although TL was identified in Argentina almost a century ago, the first recorded outbreak took place in 1984-1987 in the 'Yungas' region, and this was found to be due to Leishmania braziliensis (Sosa Estani et al. 2000. After this outbreak, the relative increased incidence of TL both children and females suggested a transmission shift from the forest to peridomestic habitats (Sosa Estani et al. 2001, Sosa Estani & Salomon 2002. In addition, since the early 1980s the re-emergence of TL has been reported for many countries in the region, and urban transmission was proposed by many other investigators (Mott et al. 1990, Desjeux 2001, Campbell-Lendrum et al. 2001, Bejarano et al. 2002, Leonardo & Rebêlo 2004, Lemos & Lima 2005.Lutzomyia intermedia sensu lato, currently termed Lu. neivai (Marcondes 1996), is widely distributed in the province of Corrientes. This species of Lutzomyia was first recorded in Corrientes City in 1926 and again in 1997(Bejarano & Duret 1950, Borda et al. 2002, it was also reported in Santo Tomé, Colonia Pellegrini, and Apipé Grande (San Antonio) during 1951 (Duret 1952), in Santa Tecla, Ituzaingó, Villa Olivari and Ita-Ibaté (Spinelli et al. 1999) during 1993, and in Bella Vista in 1998(Borda et al. 1998b). Other phlebotomine species also found in the province of Corrientes include Lu. cortelezzii, Lu. migonei, Lu. pessoai, Lu. shannoni, Lu. fischeri, Brumptomyia guimaraesi, and Br. avellari, the former four species were recorded in Corrientes City (Borda et al. 2002), the last seven were recorded in Santa Tecla and the last species was found in Ituzaingó (Spinelli et al. 1999 (Fig. 1) The average incidence of TL in the province of Corrientes, in the 'Paranaense' northeastern region was 2.2, 6.8, and 11.7 cases/year for the whole province in the periods 1955-1974, 1975-1994, and 1995-2004 respectively, according to the records of the National Surveillance System and the Dermatologic Dispensary of Corrientes.Bella Vista City, on the Paraná river shore, according to the Dermatologic Dispensary had two TL cases in 1988, one in 1991, and six in 1998. However during 2003 an outbreak took place in the City, the first recorded for the province, with suspected urban transmission. It was the southernmost known epidemic focus, and one of the scarce epidemics located in the eastern region of Argentina. Thus, this study was conducted in order to define the distribution of vectors and cases, and the risk factors for TL infection in this area. The results characterize the risk distribution of TL infection in time and space, and are discussed in the frame of the TL urbanization hypotheses and the appropriate strategies of surveillance and control. 140 km south of Corrientes City. The city is located 32 m above the Parana river and 66 m above sea level, in front of the Ramsar site 'Jaakanigás'. T...

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Tegumentary leishmaniasis in Northern Argentina: distribution of infection and disease, in three municipalities of Salta, 1990-1992

Cited by 20 publications

References 21 publications

Urban Transmission of American Cutaneous Leishmaniasis in Argentina: Spatial Analysis Study

Urban Transmission of American Cutaneous Leishmaniasis in Argentina: Spatial Analysis Study

American cutaneous leishmaniasis outbreak, Tartagal city, province of Salta, Argentina, 1993

Tegumentary leishmaniasis outbreak in Bella Vista City, Corrientes, Argentina during 2003

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