Human population movements in North Africa have been mostly restricted to an east-west direction due to the geographical barriers imposed by the Sahara Desert and the Mediterranean Sea. Although these barriers have not completely impeded human migrations, genetic studies have shown that an east-west genetic gradient exists. However, the lack of genetic information of certain geographical areas ...

Genetic patterns were examined in five populations of North American Cleistes with three sources of molecular data: amplified fragment length polymorphisms (AFLP), DNA sequencing, and plastid microsatellites. Populations of C. bifaria were sampled in four areas of the south-eastern US: the coastal plains of Florida and North Carolina and the mountains of North Carolina and West Virginia. A popu...

a total of 698 blood and serum specimens from residents of 13 iranian communities were examined by plaque reduction neutralization test for antibodies to west nile virus. in general, infection rates in the north of the country were low while higher rates were observed among residents of central and southwestern iran. the highest prevalence of infection was found among residents of khuzestan pro...

Pitjantjatjara is a dialect of the Western Desert Language (WDL) of central Australia (Douglas 1958). The Western Desert Language is a member of the south-west Pama-Nyungan group. Together with Warnman, it forms the Wati sub-group. It is spoken by 4000–5000 people, and covers the widest geographical area of any language in Australia, stretching from Woomera in central northern South Australia, ...

Genetic diversity of sub-Saharan African goats was assessed using 19 microsatellite markers. Breeds were sampled from eastern Africa (Maasai, Kigezi, Mubende, North West Highland, Arsi-Bale), southern Africa (Ndebele, Pafuri) and West Africa (West African Dwarf, Maure, Djallonke). European breeds (Grisons Striped, Toggenburg), Asian breeds (Mongolian Cashmere, Bandipur) and a Middle East breed ...

West Bengal is the fourth most populated state situated in the Eastern Region of India, 82 million people stay in the State. It is 2.7% of India's area but about 7.8% of the country's population. This state ranks first in terms of density of 904 per sq. km as per the 2001 census. The boundaries of the state are Nepal, Bhutan and the Sikkim on the North, Goalpara district of Assam and Bangladesh...

Japanese encephalitis (JE), commonly affects children and is a major cause of acute childhood encephalopathy. Growth of population, intensified rice farming, pig rearing and lack of surveillance are the key factors for transmission of the disease. Although various hospital and laboratory based studies have been conducted on epidemiology of JE in various parts of India including West Bengal, sti...

BACKGROUND AND AIM To identify the geographic distribution of hepatitis C virus (HCV) genotypes and HCV RNA viral load in a large number of HCV-infected carriers in Mexico. METHODS Patients with chronic hepatitis C (n = 8,802) were studied to identify HCV genotype using an immune line probe assay in samples shown previously to be positive for viral RNA by an RT-PCR test. Baseline HCV RNA was ...