Geographic Information System in Malaria Surveillance: Mosquito Breeding and Imported Cases in Israel, 1992

Kitron, Uriel; Pener, Hedva; Costin, C; Orshan, Laor; Greenberg, Z; Shalom, Uri

doi:10.4269/ajtmh.1994.50.550

Cited by 52 publications

(36 citation statements)

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“…A utilização de técnicas que visam à análise da distribuição espacial de insetos vetores objetivando seu monitoramento e controle vem se ampliando nos últimos anos em diversos países (Ritchie, 1993;Beck et al, 1994;Kitron et al, 1994;Smith et al, 1995;Hay, 1997;Dale et al, 1998;Spradling et al, 1998). Vale ressaltar que a quase totalidade desses estudos versa sobre o gênero Anopheles, com predominância de investigações realizadas no continente africano.…”

Section: Introductionunclassified

Análise da distribuição espacial de larvas de Aedes aegypti na Ilha do Governador, Rio de Janeiro, Brasil

Souza-Santos

Carvalho

2000

Cad. Saúde Pública

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Section: Introductionunclassified

Análise da distribuição espacial de larvas de Aedes aegypti na Ilha do Governador, Rio de Janeiro, Brasil

Souza-Santos

Carvalho

2000

Cad. Saúde Pública

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“…[11][12][13][14][15] These georeferenced data can be subject to spatial analysis to prioritize surveillance and control strategies. [16][17][18][19][20] The purpose of this study was to map and analyze the spatial and temporal distribution of all malaria cases in Trinidad since malaria eradication. In addition, by quantifying the space-time clustering of all cases, occurrence and risk of local transmission according to parasite species could be evaluated.…”

mentioning

confidence: 99%

Spatial and temporal patterns of imported malaria cases and local transmission in Trinidad.

Chadee¹,

Kitron²

1999

The American Journal of Tropical Medicine and Hygiene

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Abstract. Over a 30-year period 213 malaria cases in Trinidad were investigated by the Trinidad and Tobago Ministry of Health. Using a global positional system and a geographic information system, we mapped the precise location of all reported malaria cases, and associated them with breeding habitats of anopheline vectors. The majority of the cases (138, 63%) were individual imported cases around the big port cities. Plasmodium falciparum was the most common parasite, and Africa the most common source of imported cases. Two clusters of cases occurred: an introduced P. vivax outbreak associated with Anopheles aquasalis in 1990-1991, and an autochtonous focus of P. malariae associated with An. bellator and An. homunculus in 1994-1995. Application of a space-time statistic showed a significant clustering of P. malariae cases, and, to a lesser extent of P. vivax cases, but not of P. falciparum cases. Based on potential for occurrence of local transmission, we are developing risk maps to determine surveillance priorities, outbreak potential, and necessary degree and spatial range of control activities following case detections.Within the Americas malaria is a major cause of disease and death, with 21 countries reporting more than 1 million cases per year, and 280 million people at risk.

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“…4 Through integration of molecular techniques with other tools such as a global positioning system (GPS) and a geographic information system, vector species distribution patterns and the underlying mechanisms can be better studied. 5 Previous studies have demonstrated high level of heterogeneity in anopheline mosquito species composition at macro-geographic scale. For example, in the basin region of Lake Victoria, there are three malaria vector species, An.…”

Section: Introductionmentioning

confidence: 99%

Influence of host and larval habitat distribution on the abundance of African malaria vectors in western Kenya.

Minakawa¹,

Seda²,

Yan³

2002

Am J Trop Med Hyg

158

153

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Abstract. The abundance of anopheline mosquitoes varies substantially among houses within the same villages. Anopheles gambiae sensu stricto is highly anthropophilic, and Anopheles arabiensis is zoophilic; thus, it is often hypothesized that the abundance of An. gambiae and An. arabiensis in a house is associated with the distribution of livestock and humans. In this paper we examined the influence of livestock and human host availability on the distribution and abundance of malaria vectors in the basin region of Lake Victoria in western Kenya. Larvae and adults of An. gambiae, An. arabiensis and Anopheles funestus were collected in the beginning and the end of the rainy season in 1999. Anopheles gambiae was the predominant species in both larval and adult samples. Multiple regression analyses found that the ratio of distance between houses and larval habitats to distance between cowsheds and larval habitats had a significant and negative association with the relative abundance of An. gambiae larvae for both sampling periods. The ratio of human density to cow density was positively correlated with the relative abundance of An. gambiae larvae in the late rainy period. For the adult samples, distance from a house to its nearest larval habitats was the only variable that showed a significant correlation with the An. gambiae density in houses in both sample periods. More than 90% of anopheline adults were found in the houses within 300 meters from the nearest larval habitats. Anopheline mosquito density was not correlated to the density of cows or humans, or the distance to cowsheds from houses. These results suggest that livestock and human host availability affect the relative abundance of An. gambiae larvae in aquatic habitats, but the distribution of anopheline adults in houses is determined by the distance from houses to larval habitats.

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Geographic Information System in Malaria Surveillance: Mosquito Breeding and Imported Cases in Israel, 1992

Cited by 52 publications

References 0 publications

Análise da distribuição espacial de larvas de Aedes aegypti na Ilha do Governador, Rio de Janeiro, Brasil

Análise da distribuição espacial de larvas de Aedes aegypti na Ilha do Governador, Rio de Janeiro, Brasil

Spatial and temporal patterns of imported malaria cases and local transmission in Trinidad.

Influence of host and larval habitat distribution on the abundance of African malaria vectors in western Kenya.

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