O.M.El Hassan  , A.I.Khalafalla  , S.M.El Hassan  , 
    Detection of Antibodies Against Camel Contagious Ecthyma in Sudan Using Passive Hemagglutination Test (PHT),
    Journal of Animal and Veterinary Advances,
    Volume 3,Issue 6,
    2004,
    Pages 384-387,
    ISSN 1680-5593,
    javaa.2004.384.387,
    (https://makhillpublications.co/view-article.php?doi=javaa.2004.384.387)
    Abstract: Antibodies against camel contagious ecthyma virus (CCEV) in camel sera were detected by passive hemagglutination test (PHT) with a mean antibody prevalence of 35%. The test revealed that the infection is widespread in all parts of the Sudan where camels are raised with variable prevalence rate. The antibody prevalence was 42% in Butana, 41 % in Darfor and 19 % in Blue Nile areas. The antibody prevalence was higher post rainy season (87.5%) compared to post rainy season (2.8%) confirming seasonality associated with the rainy season (June-October). The prevalence in age group 1-4 years was relatively higher (41%) in comparison with calves less than one year (32%) and adults (35%).
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