Vitamin A status in different stages of schistosomal cases and the effectiveness of oral vitamin A therapy.


Thirty bilharzial patients were studied for their vitamin A status. Of the patients, 30% were found to have low-fasting serum retinol level below the acceptable level of 20 micrograms/dl and one-third were presented with night blindness. Oral vitamin A therapy was effective in correcting the vitamin A deficiency among this group of patients. 


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