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Progress & ImPact serIes - Roll Back Malaria - World Health ...

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Map 2.3<br />

Distribution of dominant or potentially important malaria vectors<br />

A wide range of primary vectors exists globally. They are usually the target of most control efforts.<br />

The Americas<br />

An. darlingi<br />

An. aquasalis<br />

An. albitarsis s.l.<br />

An. marajoara<br />

An. nuneztovari s.l.<br />

An. pseudopunctipennis<br />

An. albimanus<br />

An. quadrimaculatus s.l.<br />

An. freeborni<br />

0 1,250 2,500 5,000<br />

Kilometers<br />

Europe & Middle East<br />

An. superpictus<br />

An. sergentii<br />

An. sacharovi<br />

An. messeae<br />

An. labranchiae<br />

An. atroparvus<br />

Africa<br />

An. arabiensis;<br />

An. funestus;<br />

An. gambiae<br />

An. arabiensis;<br />

An. funestus<br />

An. funestus;<br />

An. gambiae<br />

An. gambiae<br />

An. funestus<br />

An. arabiensis<br />

India/Western Asia<br />

An. culicifacies s.l.;<br />

An. stephensi;<br />

An. �uviatilis s.l.<br />

An. �uviatilis s.l.<br />

An. stephensi<br />

An. culicifacies s.l.<br />

The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever<br />

Source: on the part of <strong>Malaria</strong> the <strong>World</strong> <strong>Health</strong> Atlas Organization Project concerning (17, the 18). legal status of any country, territory, city or area or of its authorities,<br />

or concerning the delimitation of its frontiers or boundaries. Dotted and dashed lines on maps represent approximate border lines<br />

for which there may not yet be full agreement.<br />

The two most important methods of vector<br />

control are ITNs and IRS. ITNs are particularly<br />

effective against mosquitoes that bite late at<br />

night while people are sleeping under the treated<br />

net and IRS is effective against mosquitoes that<br />

bite and rest indoors. ITNs and IRS are much<br />

less effective against species that bite and rest<br />

outdoors such as the forest vector An. Dirus,<br />

which is widespread in Southern Asia. For<br />

these vectors, alternative strategies such as<br />

insecticide-treated hammocks and the use of<br />

personal repellents are sometimes employed.<br />

Some species with readily identified and accessible<br />

breeding sites, such as the urban vector<br />

in India An. stephensii, can be controlled using<br />

larvicidal technologies (spraying of larvicides or<br />

deploying fish which eat Anopheles larvae). Thus,<br />

South-East Asia & Paci�c<br />

An. farauti s.l.;<br />

An. koliensis;<br />

An. punctulatus s.l.<br />

An. dirus s.l.;<br />

An. minimus s.l.<br />

An. lesteri; An. sinensis<br />

An. balabacensis<br />

An. barbirostris s.l.<br />

An. dirus s.l.<br />

An. farauti s.l.<br />

An. �avirostris<br />

Map Production: Public <strong>Health</strong> Information<br />

and Geographic Information Systems (GIS)<br />

<strong>World</strong> <strong>Health</strong> Organization<br />

An. koliensis<br />

An. lesteri<br />

An. leucosphyrus/latens<br />

An. maculatus<br />

An. minimus s.l.<br />

An. punctulatus s.l.<br />

An. sinensis<br />

An. sundaicus s.l.<br />

Map production: Public <strong>Health</strong> Information and Geographic Information Systems (GIS) <strong>World</strong> <strong>Health</strong> Organization.<br />

© WHO 2012. All rights reserved.<br />

vector control for settings outside of Africa must<br />

be carefully chosen to suit the circumstances<br />

prevalent in a country.<br />

Because there is much variation in the behaviour<br />

of vectors that carry malaria, and because<br />

P. falciparum and P. vivax have different<br />

characteristics, the epidemiology of malaria<br />

is highly variable across the world. This report<br />

examines the epidemiology of malaria, and<br />

progress of malaria control, in four geographical<br />

regions outside of Africa. The four regions<br />

illustrate the diversity of situations in which<br />

malaria is encountered and the challenges<br />

for control but it is acknowledged that the<br />

epidemiology of malaria is still highly variable<br />

within these regions.<br />

DEFEATING MALARIA IN ASIA, THE PACIFIC, AMERICAS, MIDDLE EAST AND EuROPE<br />

31

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