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File: 950901_024_00d.txt
Page: 00d
Total Pages: 1

MALARIA IN THE ARABIAN PENINSULA

Filename:024.00d
SUBJECT: MALARIA IN THE ARABIAN PENINSULA

[    b.2.    ]

TO: [    b.6.    ]

FROM: [    b.6.    ]AFMIC-EPI[    b.2.    ]

TEXT: MALARIA TRANSMISSION ON THE ARABIAN PENINSULA IS 
RESTRICTED TO YEMEN, OMAN, AND WESTERN AND SOUTHWESTERN SAUDI 
ARABIA. PLASMODIUM FALCIPARUM PREDOMINATES, BUT P. VIVAX 
OCCURS. TRANSMISSION GENERALLY IS MOST INTENSE IN COASTAL OR 
IRRIGATED AGRICULTURAL AREAS, BUT OCCURS UP TO ELEVATIONS OF 
2,000 METERS IN ENDEMIC AREAS. IN ENDEMIC AREAS, TRANSMISSION 
OCCURS YEAR-ROUND, WITH A SEASONAL PEAK FROM OCTOBER THROUGH 
APRIL. CHLOROQUINE-RESISTANT FALCIPARUM MALARIA RECENTLY HAS 
BEEN CONFIRMED IN OMAN AND YEMEN, AND IS SUSPECTED IN 
SOUTHWESTERN SAUDI ARABIA.

IN SAUDI ARABIA, THE MOST INTENSE TRANSMISSION OCCURS IN THE 
TIHAMA COASTAL REGION AND THE ASIR HIGHLANDS IN THE SOUTHWEST 
(JIZAN, ASIR, AND AL BAHAH PROVINCES). RISK IN THE WESTERN 
PROVINCES (MAKKAH AND AL MADINAH) IS LIMITED TO RURAL VALLEY 
FOCI IN THE HIJAZ MOUNTAINS. URBAN AREAS IN THE WESTERN 
PROVINCES ARE RISK FREE, ALTHOUGH VECTOR SPECIES MAY BE 
PRESENT.

IN OMAN, THE MOST INTENSE TRANSMISSION OCCURS IN NORTH-CENTRAL 
MOUNTAIN VILLAGE AREAS. TRANSMISSION ALSO OCCURS ALONG THE 
BATINAH COASTAL PLAIN NORTH OF THE SEEB INTERNATIONAL AIRPORT, 
TO THE NORTHERN BORDER WITH THE UNITED ARAB EMIRATES, AND IN 
THE SOUTHERN DHOFAR REGION. THE CAPITAL AREA AROUND MUSCAT AND 
THUMRAIT ARE RISK-FREE, ALTHOUGH MOSQUITO VECTORS ARE PRESENT 
AT SOME LOCATIONS.

IN YEMEN, MALARIA TRANSMISSION OCCURS THROUGHOUT MOST REGIONS. 
SANAA, ADEN, THE HIGH MOUNTAINS (ELEVATIONS ABOVE 1,500 
METERS), AND THE EASTERN DESERT AREAS ARE RISK-FREE.


 



 

 



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