All are precipitation reactions except: a. VDRL test b. Kahn test c. Widal test d. Ascoli's test

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All are precipitation reactions except: a. VDRL test b. Kahn test c. Widal test d. Ascoli's test

All are precipitation reactions except Widal test. Widal test is an agglutination reaction to diagnose typhoid fever caused by Salmonella typhi bacteria.

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Asked 3/2/2022 5:24:18 AM

Updated 1/15/2025 2:12:44 AM

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Superantigen causes:

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Updated 3/1/2022 8:45:46 AM

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jonathan wairimu

Superantigens cause symptoms via the release of immune cytokines. These proteins should be considered potential causes of illnesses such as rheumatic fever, arthritis, Kawasaki syndrome, atopic dermatitis, and guttate psoriasis because of their potent immune system-altering capacity.

Added 3/1/2022 8:45:46 AM

This answer has been confirmed as correct and helpful.

Confirmed by oldwallet [7/12/2025 2:04:34 PM]

Superantigen causes : 1.Enhancement of phagocytosis 2.Polyclonal activation of B cells 3.Antigen presentation by macrophage 4.Activation of complement

Weegy: Super-antigen causes polyclonal activation of B cells. They can activate T cell directly without being processed by antigen presenting cells (APCs). (More)

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Updated 2/3/2025 3:34:47 AM

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F factor carrying some chromosomal DNA is called : 1.F factor 2.Hfr 3.RTF 4.F'factor

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Asked 3/2/2022 5:00:03 AM

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F factor carrying some chromosomal DNA is called : 1.F factor 2.Hfr 3.RTF 4.F'factor

Weegy: F factor carrying some chromosomal DNA is called F' factor. (More)

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Endotoxin acts by: a. Classical pathway b. Lectin pathway c. Alternative pathway d. None

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