What further evidence do we need to diagnose Elisa?

ELISA, using excretory-secretory antigens from infective-stage larvae, is the diagnostic test of choice. In patients whose clinical signs and history suggest visceral toxocariasis, a positive Toxocara ELISA is strong presumptive evidence of Toxocara infection. A rising or falling titer with a twofold difference in a recently ill patient is consistent with visceral toxocariasis

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blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.